Alchemy-Spetec Blog

Geotech Equipment - Slab Lifting, Soil Stabilization, Seawall Repair

Posted by Colt Hullander on Apr 8, 2021 10:00:00 AM

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Rigs & Pumps for Polyurethane Slab Lifting

Entry-Level Rig

This rig features a hydraulic PH-2 proportioner. It's in a 16' v-nose trailer and has a gas powered air compressor and generator. We have many contractors with this set up doing everything from residential to D.O.T work.

Mid-Level Rig

This rig can either be a 18' or 20' trailer that happens to be built around the PH-2 proportioner. This setup is made for the contractor who wants stellar results in an affordable price range. This package boasts a 22 KW diesel powered generator and an electric air compressor.

Advanced Level Rig

This rig is similar to the mid-level rig with a larger PH-40 proportioner. These rigs come in 20'-plus size trailers and box trucks. They and are powered by 35 KW Stateline Diesel (John Deere) generator sets and also include electric air compressors. This setup is ideal for larger jobs.

PolyBadger Mobile Lifting Unit

The PolyBadger lifting system is tough and compact. This system is an affordable entry-level option for new contractors, as well as an extremely portable addition to the experienced contractor’s arsenal. The PolyBadger is a lot less expensive than your standard 20 foot trailer rig. The set up is simple and requires minimal equipment. The entire system can easily fit in the back of a pickup truck!

Polyurethane Soil Stabilization & Seawall Repair Pumps

PolyShark Pump for Larger Jobs

Single-Component Geotech Pump Skid
The PolyShark system is a custom pump skid for installation of single-component polyurethane geotech resins. This world-class skid set up is essential for large scale seawall repair, soil stabilization, and void fill projects. The PolyShark includes a gas-powered high-pressure injection pump, two hose reels, and flow meters.

Gas-Powered High-Pressure Injection Pump
A step up for projects that require greater power and output, this custom modified pump is our best-selling gas over hydraulic piston machine, favored by contractors who want to complete large application jobs in record time with high profit margins. The hydraulic ram fluid section is moved front and center in the configuration for easier maintenance and control.

High-Pressure Hose Reels with Stainless Steel Ball Bearings
High-pressure design guarantees durability when used with the high-pressure single-component pump. The construction is completely corrosion resistant and the stainless steel ball bearings, hardware, and manifolds are stronger than the aluminum parts on standard hose reels. The ball bearing-driven hose reels operate smoothly because they contain no bushings. (Bushings easily wear out.)

Flow Meters
Two high-pressure flow meters are capable of recording the exact amount of product pushed through the hose lines. This allows for precision material-use tracking.

Titan 440 Pump for Smaller Jobs

Pumps like the modified Titan IMPACT 440 electric injection pump are ideally suited for residential, property maintenance and small commercial applications.

MixMaster Pro Slab Lifting Gun

The MixMaster Pro was designed based on years of feedback from slab lifting contractors working in the field. Every known point of frustration and difficulty has been addressed in this sturdy, single-purpose gun. Further benefits include a lower cost of consumables (you can reuse ports with this gun), beefy check valves designed to handle the back pressure, and a short 10-minute breakdown/cleaning session at the end of each day. Not to mention the fact that this gun is a production BEAST - no leaky port connections, no fumbling with clamps. Watch your man hours on each project shrink accordingly. Did we mention you’ll have less replacement part orders? There are only a few inexpensive replacement parts on this gun - PERIOD.

Want more information on geotech equipment and products?

Download the Info-Packed Geotech Product Catalog!

Topics: Repair Seawalls, Equipment & Accessories, All Posts, Lift Slabs, Stabilize Soil

Leak Seal Equipment - Crack Injection, Curtain Grouting, Waterstop

Posted by Charlie Lerman on Apr 6, 2021 10:00:00 AM

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Polyurethane Leak Seal Pumps

Alchemy-Spetec offers world-class Titan electric injection pumps for sealing both small and gushing leaks as well as filling voids behind and below structures.  We modify these pumps to optimize them for polyurethane injection.

IMPACT 440 Electric Injection Pump
The IMPACT 440 is an advanced electric injection pump that’s ideally suited for residential, property maintenance and small commercial applications. This pump is the industry standard.

PowrTwin 8900 Plus Electric Injection Pump
The PowrTwin 8900 Plus is favored by contractors who want to complete large application jobs in record time with high-profit margins.

Polyurethane Leak Seal Accessories

Alchemy-Spetec offers a wide variety of accessories for polyurethane leak seal applications:

High Pressure Crack Injection Valve
This crack injection valve allows you to control resin flow at the point of injection and turn an airless sprayer into an injection pump.

Flush Wand
Use the flush wand to flush concrete dust from the holes you have drilled for crack injection.

High Pressure F-Valve Assembly
Twin streaming is a technique in which you use a high pressure F-valve to inject resin AND water at the same time. As you can see in the photo, the F-valve has two supply connections – one for water and one for resin. The water and resin come into contact before they exit the coupler.

Oakum
AP Oakum is an oil-free dry jute rope that seals cracks and slows down gushing water during leak repair. Oakum can be used alone or in combination with Alchemy-Spetec leak seal resins.

Ports/Packers
Alchemy-Spetec offers pretty much all of the required ports/packers you could possibly need for your next chemical injection project. 

Waterstop Products

Waterstop products are designed to prevent leaks from occurring in new construction.

Injection Tube System
The Spetec Injection Tube System is used in conjunction with the Spetec PUR F400 or Spetec PUR H100 as a primary waterstop in cold joints and pipe joints. This system can also be used in retrofit applications for expansion joints and other wide cracks or joints measuring over 3/8 of an inch.

Spetec SST500
SST500 expanding waterproof strips are simply fastened onto an existing joint.  When in contact with water in a confined space, SST500 will swell and stop the infiltration. SST500 remains consistent in its performance throughout its life cycle and the flexibility allows it to fill voids and cracks in the immediate surrounding area.

Want more information on leak seal equipment and products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: Equipment & Accessories, All Posts, Seal Leaks, Waterstop

Repairing Manhole Groundwater Infiltration with Polyurethane Grout

Posted by Charlie Lerman on Apr 1, 2021 10:00:00 AM

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Body - Repairing Manhole Groundwater Infiltration with Polyurethane GroutWhy Repair Groundwater Infiltration in Concrete Infrastructure?

As outlined in our previous blog posts, Mitigating I & I - An Ounce of Prevention is Worth a Pound of Cure and Spend a Little on Infrastructure Infiltration Repair, Save a LOT on Wastewater Treatment Costs, there are many dangers associated with sanitary sewer overflows, lots of funds available for infiltration repair, and many dollars to be saved by choosing to repair high-volume leaks.

How to Repair Groundwater Infiltration

All of this begs the question: How are these leaks repaired exactly? The first step is to identify high-volume leaks in manholes, lift stations, pipes, and other sanitary system components. Monitor and compare peak vs normal flow rates. Inspect the infrastructure in question and look for gushing leaks. These leaks can be repaired with a small crew of about three people. A repair crew this size typically averages about two manholes per day (depending on manhole size and proximity).

On average, curtain wall grouting an 4-foot diameter x 8-foot tall manhole requires 5 gallons of Spetec PUR HighFoamer. On average, treating joints and pipe penetrations on an 4-foot diameter x 8-foot tall manhole requires 2.5 gallons of Spetec PUR GT380.

For more information on infrastructure infiltration repair, call the Alchemy-Spetec tech support team at 404-618-0438.

Want more info on Alchemy-Spetec leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: All Posts, Seal Leaks

Spend a Little on Infrastructure Infiltration Repair, Save a LOT on Wastewater Treatment Costs

Posted by Charlie Lerman on Mar 30, 2021 10:00:00 AM

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Body - Spend a Little on Infrastructure InfiltrationThe Cost of Wastewater Treatment

According to an article published by Water Technology Magazine (WaterTechOnline.com), the average cost to treat 1000 gallons of wastewater is $2.06. Let’s take a look at how that $2.06 adds up over time. A 10 gallon per minute leak in a manhole for example equals 5,256,000 gallons of water leaked per year. That adds up to a $10,827.36 per year ($902.28 per month) wastewater treatment cost resulting from that leak alone.

Repair Infrastructure Infiltration & Save Money

Let’s compare that to the average one-time cost to stop all the leaks in a 4-foot diameter x 8-foot tall manhole: $3000 or so depending on local labor rates. This relatively low repair cost is recouped in less than 4 months, considering the monthly wastewater treatment cost of $902.28. This equals $7,000 - $8,000 cost avoidance in the first year alone. In subsequent years, you’re saving the full $10,827.36.

Now multiply those number by all the manholes in your district with large leaks. The numbers are truly staggering.

More Info on Infrastructure Infiltration Repair

For more information on infrastructure infiltration repair, see our blog post Mitigating I & I – An Ounce of Prevention is Worth a Pound of Cure. If you’d like to discuss I & I issues with our experienced tech support team, call 404-618-0438.

Want more info on Alchemy-Spetec leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: All Posts, Seal Leaks, Business Tips

Mitigating I & I - An Ounce of Prevention is Worth a Pound of Cure

Posted by Charlie Lerman on Mar 25, 2021 10:00:00 AM

Banner - Mitigating I & I - An Ounce of Prevention is Worth a Pound of Cure

Body - Mitigating I & I - An Ounce of Prevention is Worth a Pound of CureInflow and infiltration (I & I) are widespread problems for municipalities across North America. The term inflow refers to stormwater entering sewer systems. The term infiltration refers to groundwater leaking into manholes, lift stations, pipes, and other sanitary system components. While there are some methodologies on the market for mitigating inflow, this article is primarily concerned with mitigating infiltration with polyurethane grout.

Dangers Posed by Sanitary Sewer Overflows (SSOs)

According to EPA.gov, sanitary sewer overflows are widespread and pose many dangers to public health:

  • The EPA estimates there are at least 23,000 - 75,000 SSOs per year (not including sewage backups into buildings) in the U.S. SSOs that reach waters of the U.S. are point source discharges. Like other point source discharges from municipal sanitary sewer systems, SSOs are prohibited unless authorized by a NPDES permit. Moreover, SSOs, including those that do not reach waters of the U.S., may be indicative of improper operation and maintenance of the sewer systems, and may violate NPDES permit conditions. (Source.)
  • Because SSOs contain raw sewage they carry bacteria, viruses, protozoa (parasitic organisms), helminths (intestinal worms), and inhaled molds and fungi. As a result, they may cause diseases ranging in severity from mild gastroenteritis (causing stomach cramps and diarrhea) to life-threatening ailments such as cholera, dysentery, infections hepatitis, and severe gastroenteritis. People may be exposed through:
    • Sewage in drinking water sources.
    • Direct contact in areas of high public access such as basements, lawns or streets, or waters used for recreation. At least one study has estimated a direct relationship between gastrointestinal illness contracted while swimming and bacteria levels in the water.
    • Shellfish harvested from areas contaminated by raw sewage. One study indicates that an average of nearly 700 cases of illness per year were reported in the 1980s from eating shellfish contaminated by sewage and other sources. The number of unreported cases is estimated to be 20 times that.
    • Some cases of disease contracted through inhalation and skin absorption have also been documented. (Source.)

Massive Amount of Funds in Place for Sewer & Stormwater Infrastructure Repair

Fortunately, hundreds of billions of dollars are available for addressing these issues according to EPA.gov:

  • The CWSRF (Clean Water State Revolving Fund) was created by the 1987 amendments to the Clean Water Act (CWA) as a financial assistance program for a wide range of water infrastructure projects, under 33 U.S. Code §1383. The program is a powerful partnership between EPA and the states that replaced EPA's Construction Grants program. States have the flexibility to fund a range of projects that address their highest priority water quality needs. The program was amended in 2014 by the Water Resources Reform and Development Act. Using a combination of federal and state funds, state CWSRF programs provide loans to eligible recipients to:

    • construct municipal wastewater facilities,

    • control nonpoint sources of pollution,

    • build decentralized wastewater treatment systems,

    • create green infrastructure projects,

    • protect estuaries, and

    • fund other water quality projects.

  • Building on a federal investment of $46.8 billion, the state CWSRFs have provided $145 billion to communities through 2020. States have provided over 42,800 low-interest loans to protect public health, protect valuable aquatic resources, and meet environmental standards benefiting hundreds of millions of people. (Source.)

A Simple Plan for Mitigating Sanitary/Stormwater System Infiltration

The grouting plan outlined below provides the highest return on investment:

  1. Inspect manhole and lift stations.
  2. Identify large, obvious leaks.
  3. Repair with polyurethane leak seal grout. A two-person crew can easily mitigate 10-30 gallons per hour in less than a day. This one day’s work typically equates to $30,000 a year in savings depending on local treatment costs.

For more information on mitigating infiltration with polyurethane grouts, call the Alchemy-Spetec technical support team at 404-618-0438 today.

Want more info on Alchemy-Spetec leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: All Posts, Seal Leaks

Polyurethane Leak Seal with Spetec PUR GT380

Posted by Charlie Lerman on Mar 23, 2021 10:00:00 AM

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Body - Polyurethane Leak Seal with Spetec PUR GT380What Makes Spetec PUR GT380 Unique?

Spetec PUR GT380 is a hydrophilic, one-component flexible polyurethane injection resin for sealing leaks in concrete.

Unique qualities include:

  • Depending on amount of water added, it will form either a  foam or a gel.
  • Designed as a multi-purpose foam or gel for varying conditions found in manholes and lift stations.
  • Lowest viscosity hydrophilic grout offered by Alchemy-Spetec.

This article features three previously published blog posts on the product.

Spetec PUR GT380 Polyurethane Leak Seal Blog Articles

Shut Off Leaks in Structures Where Movement May Occur provides a basic overview of Spetec PUR GT380. Learn about advantages and applications, as well as additional information. Read more...

Sealing Precast Manhole Joint Infiltration with Spetec PUR GT380 provides an overview and basic installations instructions for sealing standard leaks in precast manhole joints. Read more...

Sealing Gushing Leaks in Precast Manholes with GT380 and Oakum Soakum provides an overview and basic installation instructions for sealing gushing leaks in precast manholes. In this case the product is used in combination with AP Oakum, an oil-free dry jute rope. Read more... 

Want more info on Alchemy-Spetec polyurethane leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: Seal Leaks

Polyurethane Leak Seal with Spetec PUR GT350

Posted by Charlie Lerman on Mar 18, 2021 10:00:00 AM

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Body - Polyurethane Leak Seal with Spetec PUR GT350What Makes Spetec PUR GT350 Unique?

Spetec PUR GT350 is a hydrophilic, one-component flexible polyurethane injection resin for sealing leaks in concrete.

Unique qualities include:

  • Extremely high wet/dry cycling resistance.
  • Hydrophilic grout that is still appropriate for above-grade crack injection.
  • Immediate in increase in viscosity upon contact with water, which is ideal for shutting down high-flow leaks.

This article features three previously published blog posts on the product.

Spetec PUR GT350 Polyurethane Leak Seal Blog Articles

Sealing Leaks with GT350 provides a basic overview of the product. Learn about advantages and applications, as well as additional information. Read more...

Sealing Manholes with Spetec PUR GT350 provides a breif overview of a manhole leak seal job that one or our customers performed with the product. Read more...

Northgate Link Extension with GT350 provides an overview of a tunnel wall leak seal job one of our customers worked on for Seattle's rapid transit system. Read more...

Want more info on Alchemy-Spetec polyurethane leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: Seal Leaks

AP Pump Saver 195 - Lubricate and Protect Single Component Pumps

Posted by Colt Hullander on Mar 16, 2021 10:00:00 AM

Banner - AP Pump Saver 195 - Lubricate and Protect Single-Component Pumps

Body - AP Pump Saver 195 - Lubricate and Protect Single-Component PumpsAP Pump Saver 195 is a specially formulated oil-based lubricant and protectant. It was designed for use in single-component polyurethane pumps. 

Applications

  • Lubricating and protecting oil cup section of Poly Shark pumps.
  • Lubricating and protecting packings and seals on other single component pumps.

Advantages

  • Greatly extends the life of the pump packings.
  • Rejuvenates old, worn seals. 
  • Decreases the amount of resin leaking into the oil cup.

After single component pumps have been thoroughly flushed with AP Flush 121, circulate AP Pump Saver through the system for at least 20 minutes.  AP Pump Saver 195 is supplied in 5 Gallon Pails (18.9 Liter Pails) with a removable lid.

Want more information on Alchemy-Spetec Geotech products?

Download the Info-Packed Geotech Product Catalog!

Topics: Repair Seawalls, Equipment & Accessories, All Posts, Stabilize Soil

Manhole and Storm Culvert Leak Repair

Posted by Charlie Lerman on Mar 11, 2021 10:00:00 AM

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Body - Manhole and Storm Culvert Leak RepairEditor's Note: This article is an updated edition of Charlie Lerman's 2017 article, Crack Injection and Curtain Wall Grouting - Part 4.

Manhole Leak Repair

Leaking manholes can cause unnecessary damage to the environment and can be costly if left untreated. Water leaks create voids that can lead to sinkholes, roadway collapses and system failures. Chemical Grouting is a low cost, durable repair method for manholes that can prolong the life of the structure.

Injection Methods for Manhole Repair

Brick Manholes

  • Drill to the outside of the manhole and into the soil through the brick.
  • Repair all pipe penetrations, and have AP Oakum ready to help plug leaks.
  • Start injection of material at the bottom and work your way up.

Precast Manholes

  • Repair all pipe penetrations and apply oakum rings if too wide.
  • Drill injection holes into the manhole rings at the four main clock positions (12-3-6-9).
  • Start injecting material from the bottom up.

Storm Culvert Leak Repair

Storm culverts transport large volumes of water. Leaks bring exterior soil into the storm culvert, often causing sinkholes above. Chemical grouting these structures is a non–excavation repair, which will seal joints and leaks and stabilize soils. Unlike cement grouts, chemical grouts add little to no weight to surrounding soils. Injection of storm culverts can be achieved by manned entry or via probe grouting from above when access is not considered feasible.

Injection Methods for Culvert Repair

Manned Entry Method

  • All joints need to be identified and inspected for any possible concrete repair that may need to be performed prior to the injection process.
  • Wide joints should be packed using oakum rope and chemical grout to minimize waste and contain injection grout in the joint. Once prepared, injection can be performed.

Probe Grouting Method

  • Map off leaks using a CCTV camera.
  • Measure out and mark locations on the street or soil above.
  • Drill holes though street or soil above at each location.
  • Insert injection pipe to a depth of one foot below bottom of repair point.
  • Start injecting a rate of 1 gallon per foot stopping at the top of the pipe.

It is important to remember that a leak is a round-the-clock problem. A small leak can eventually lead to a larger leak, which can eventually become catastrophic if left untreated. The longer the wait before repairs, the more expensive the repair becomes. Call the Alchemy-Spetec tech support team now at 404-618-0438 for assistance on manhole and storm culvert repair projects.

Want more information on leak seal products?

Download an Info-Packed Leak Seal Brochure!

Topics: All Posts, Seal Leaks

Sealing Leaks for Vacuum Testing

Posted by Charlie Lerman on Mar 9, 2021 10:00:00 AM

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Body - Sealing Leaks for Vacuum TestingSome municipalities use a method called vacuum testing to identify potential leaks in their newly constructed manholes and pipes. Leaks can be caused by honeycombed concrete, deflected joints, and poor installation of boots. Sometimes precast units can be cracked by heavy equipment during the installation and backfilling process. Municipalities can implement vacuum testing to ensure that the taxpayer is not footing the bill for a system that will fail and require costly repairs down the line.

Technicians identify leaks in new structures by coating the inside with soapy water. Next, they perform a vacuum test with special equipment that extracts all the air and causes bubbles to appear in the leaking areas. After leaks are identified via vacuum testing, professional leak seal contractors can seal them with polyurethane grout using the process outlined below:

  1. Drill a small injection hole near the leak location.
  2. Flush the hole with water to clear out any debris.
  3. Insert a port into the drill hole.
  4. Install a Zerk fitting in the port and connect your injection gun.
  5. Inject water into the cracks/voids to make sure the moisture activated grout will react.
  6. Inject a moisture activated polyurethane grout such as Spetec PUR F400 or Spetec PUR GT500.
  7. After the grout cures, the technicians apply the vacuum test again to determine if the leaks have been repaired.

Leak seal contractors should encourage local municipalities and specifiers to require vacuum testing on structures after they are backfilled. If you’d like assistance in making a presentation on this subject, call us today at 404-618-0438.

Want more information on leak seal products?

Download an Info-Packed Leak Seal Brochure!

Topics: All Posts, Seal Leaks