Sewer Testing Equipment

Sewer testing equipment includes plugs and related sealing tools used to temporarily close pipe openings during plumbing, DWV, waste stack, and sewer testing. Common commercial uses include sealing water line stub-outs, testing pipe sections from floor drains to sewer piping, closing hub fittings and bell-end pipe, and covering open pipe ends during work or storage.

Product Display:
Helpful Buying Guide

Choose Sewer Testing Equipment for the Pipe, Test Setup, and Task

The products represented in this category range from compact mechanical pipe plugs to inflatable test-ball plugs, hub-fit gripper plugs, dust covers, and bypass-equipped test plugs. Start with the pipe size and the location to be sealed, then compare the stated pressure rating, connection style, sealing material, access needs, and applicable minimum order quantity.

Visual Guide

Popular examples in this category

3/4-Inch Pipe Test Plug with Rubber O-Ring3/4-Inch Pipe Test Plug with Rubber O-RingWBB15925513-Inch Clean-Seal Test Plug, 13 PSI, 30 ft3-Inch Clean-Seal Test Plug, 13 PSI, 30 ftWBB15943151-1/2 in. End-of-Pipe Gripper Plug, 17 PSI1-1/2 in. End-of-Pipe Gripper Plug, 17 PSIWBB15922554–6 in. Long Test-Ball Plug with 3 ft Extension Hose4–6 in. Long Test-Ball Plug with 3 ft Extension HoseWBB1595019
Use Cases

Temporarily seal lines for plumbing tests

Use compatible plugs to seal water line stub-outs, pipe ends, hub fittings, bell-end pipe, waste stacks, and sewer lines during listed testing work. A dust cover plug is intended for covering open pipe ends rather than pressure testing.

How to Choose

Match size, design, and pressure rating

Compare the stated pipe fit first, then select for the test location and setup. Review listed pressure ratings, such as 13 PSI, 17 PSI, 72 PSI, or 180 PSI, only for work within the product's stated rating.

Applications

Select designs for the test location

End-of-pipe gripper plugs seal at a pipe end, hub-fit gripper plugs fit compatible hub fittings and bell-end pipe, and long test-ball plugs are used for waste stack tests from a floor drain to sewer piping.

Additional Info

Plan for bypasses, valves, and order quantities

Some test plugs include threaded bypass connections for compatible test setups, while certain models have removable inflation fittings or valves. Check effective minimum order quantities where listed before purchasing.

3/4–16 in.Listed size coverage

Specific sizes and ranges include compact plugs through municipal pipe applications.

13–180 PSIStated ratings

Ratings vary by model; select only within the rating listed for the product.

2–3 in.Multi-size test-ball fit

One sewer test-ball plug fits compatible pipe diameters in this range.

1–49Listed minimum orders

Effective minimum order quantities vary by item where stated.

Comparison Guide

Compare the represented plug types

Use this overview to narrow options by the sealing task and the features identified in the product summaries.

Product typeBest suited to listed applicationsKey selection details
Mechanical pipe and gripper plugsSealing compatible water line stub-outs, pipe ends, hub fittings, and bell-end pipe during listed testing workCompare specific size, end-of-pipe or hub-fit design, wing-nut operation, O-ring, pressure rating, and minimum order.
Long and inflatable test-ball plugsWaste stack tests from floor drains to sewer piping; blocking flow or creating a back plug during sewer air testingCompare pipe-size range, stated 13 PSI rating where listed, extension hose, ring-and-chain assembly, and removable inflation valve.
Bypass and flow-through test plugsSewer and plumbing testing setups requiring a threaded connection point or passage through the plugCompare plug size, bypass size and threading, natural rubber body, conversion compatibility where listed, and removable components.
Planning Guide

Plan the right fit before choosing

Start with pipe size and sealing point

Choose a plug built for the opening you need to close

The available options cover several specific pipe sizes and ranges, including 3/4 inch, 1-1/2 inch, 2-1/2 inch, 4 inch, 5 inch, 6 inch, 15 inch, and 15–16 inch pipe, plus 2–3 inch and 4–6 inch ranges. The sealing location also matters: some plugs are made for pipe ends, while others are intended for hub fittings, bell-end pipe, test tees, water line stub-outs, or larger sewer lines.

  • Use end-of-pipe designs for a sealing point at the pipe end.
  • Choose a 4 inch hub-fit gripper plug for compatible hub fittings and bell-end pipe during DWV testing.
  • Consider long test-ball plugs for waste stack testing from floor drains to sewer piping.
  • Choose a dedicated dust cover plug for compatible open pipe ends during work or storage.
Compare test setup features

Match the plug configuration to your testing procedure

Pressure ratings vary by product, so select only according to the stated rating for the intended work. Mechanical plugs with wing nuts provide manual tightening, while inflatable test-ball designs are used to block flow or create a back plug during sewer air testing. Bypass-equipped plugs provide threaded connection points or a flow-through passage for compatible testing arrangements.

  • A 3 inch Clean-Seal plug threads into a test tee to help limit water backsplash.
  • Ring-and-chain assemblies on long test-ball plugs help prevent the plug from slipping down the pipe.
  • Natural rubber bodies are listed to help seal rough pipe surfaces on select larger test plugs.
  • Conversion-ready and conversion-kit-compatible plugs can be converted to air-test-plug use with a compatible conversion kit.
Review serviceability and purchasing details

Check replaceable components and minimum quantities

Some products include removable or replaceable components that can support ongoing use, such as an inflation fitting, inflation valve, tire valve, or eye bolt. Minimum order quantities differ among listed items, from one each on select plugs to larger quantities for other plug types.

  • The Clean-Seal plug has a replaceable inflation fitting.
  • The 2–3 inch sewer test-ball plug has a removable inflation valve that can be changed to a quick-disconnect fitting.
  • The 15 inch flow-through plug has a removable tire valve and removable 3/8 inch eye bolt.
  • Listed minimum orders include 1, 5, 6, 13, 14, 20, and 49, depending on the item.
FAQ

Common questions before buying

What is the difference between a test plug and a dust cover plug?

Test plugs are represented for plumbing, DWV, waste stack, or sewer testing applications. The 5 inch open-end pipe dust cover plug is for helping keep dust out of compatible open pipe ends and is not for pressure-test use.

Which plugs are used for waste stack testing?

The 4–6 inch long test-ball plug and the 6 inch long waste stack test-ball plug are listed for testing waste stacks from a floor drain to a sewer pipe.

When should I consider a bypass-equipped plug?

Consider a bypass-equipped plug when a compatible testing setup needs a threaded connection point or flow-through passage. Listed examples include 6 inch and 15–16 inch plugs with threaded bypasses and a 15 inch flow-through plug.

Do minimum order quantities vary?

Yes. Where listed, effective minimum orders range from 1 to 49, depending on the product.

Helpful Buying Guide

Choose Sewer Testing Equipment for the Pipe, Test Setup, and Task

The products represented in this category range from compact mechanical pipe plugs to inflatable test-ball plugs, hub-fit gripper plugs, dust covers, and bypass-equipped test plugs. Start with the pipe size and the location to be sealed, then compare the stated pressure rating, connection style, sealing material, access needs, and applicable minimum order quantity.

Visual Guide

Popular examples in this category

3/4-Inch Pipe Test Plug with Rubber O-Ring3/4-Inch Pipe Test Plug with Rubber O-RingWBB15925513-Inch Clean-Seal Test Plug, 13 PSI, 30 ft3-Inch Clean-Seal Test Plug, 13 PSI, 30 ftWBB15943151-1/2 in. End-of-Pipe Gripper Plug, 17 PSI1-1/2 in. End-of-Pipe Gripper Plug, 17 PSIWBB15922554–6 in. Long Test-Ball Plug with 3 ft Extension Hose4–6 in. Long Test-Ball Plug with 3 ft Extension HoseWBB1595019
Use Cases

Temporarily seal lines for plumbing tests

Use compatible plugs to seal water line stub-outs, pipe ends, hub fittings, bell-end pipe, waste stacks, and sewer lines during listed testing work. A dust cover plug is intended for covering open pipe ends rather than pressure testing.

How to Choose

Match size, design, and pressure rating

Compare the stated pipe fit first, then select for the test location and setup. Review listed pressure ratings, such as 13 PSI, 17 PSI, 72 PSI, or 180 PSI, only for work within the product's stated rating.

Applications

Select designs for the test location

End-of-pipe gripper plugs seal at a pipe end, hub-fit gripper plugs fit compatible hub fittings and bell-end pipe, and long test-ball plugs are used for waste stack tests from a floor drain to sewer piping.

Additional Info

Plan for bypasses, valves, and order quantities

Some test plugs include threaded bypass connections for compatible test setups, while certain models have removable inflation fittings or valves. Check effective minimum order quantities where listed before purchasing.

3/4–16 in.Listed size coverage

Specific sizes and ranges include compact plugs through municipal pipe applications.

13–180 PSIStated ratings

Ratings vary by model; select only within the rating listed for the product.

2–3 in.Multi-size test-ball fit

One sewer test-ball plug fits compatible pipe diameters in this range.

1–49Listed minimum orders

Effective minimum order quantities vary by item where stated.

Comparison Guide

Compare the represented plug types

Use this overview to narrow options by the sealing task and the features identified in the product summaries.

Product typeBest suited to listed applicationsKey selection details
Mechanical pipe and gripper plugsSealing compatible water line stub-outs, pipe ends, hub fittings, and bell-end pipe during listed testing workCompare specific size, end-of-pipe or hub-fit design, wing-nut operation, O-ring, pressure rating, and minimum order.
Long and inflatable test-ball plugsWaste stack tests from floor drains to sewer piping; blocking flow or creating a back plug during sewer air testingCompare pipe-size range, stated 13 PSI rating where listed, extension hose, ring-and-chain assembly, and removable inflation valve.
Bypass and flow-through test plugsSewer and plumbing testing setups requiring a threaded connection point or passage through the plugCompare plug size, bypass size and threading, natural rubber body, conversion compatibility where listed, and removable components.
Planning Guide

Plan the right fit before choosing

Start with pipe size and sealing point

Choose a plug built for the opening you need to close

The available options cover several specific pipe sizes and ranges, including 3/4 inch, 1-1/2 inch, 2-1/2 inch, 4 inch, 5 inch, 6 inch, 15 inch, and 15–16 inch pipe, plus 2–3 inch and 4–6 inch ranges. The sealing location also matters: some plugs are made for pipe ends, while others are intended for hub fittings, bell-end pipe, test tees, water line stub-outs, or larger sewer lines.

  • Use end-of-pipe designs for a sealing point at the pipe end.
  • Choose a 4 inch hub-fit gripper plug for compatible hub fittings and bell-end pipe during DWV testing.
  • Consider long test-ball plugs for waste stack testing from floor drains to sewer piping.
  • Choose a dedicated dust cover plug for compatible open pipe ends during work or storage.
Compare test setup features

Match the plug configuration to your testing procedure

Pressure ratings vary by product, so select only according to the stated rating for the intended work. Mechanical plugs with wing nuts provide manual tightening, while inflatable test-ball designs are used to block flow or create a back plug during sewer air testing. Bypass-equipped plugs provide threaded connection points or a flow-through passage for compatible testing arrangements.

  • A 3 inch Clean-Seal plug threads into a test tee to help limit water backsplash.
  • Ring-and-chain assemblies on long test-ball plugs help prevent the plug from slipping down the pipe.
  • Natural rubber bodies are listed to help seal rough pipe surfaces on select larger test plugs.
  • Conversion-ready and conversion-kit-compatible plugs can be converted to air-test-plug use with a compatible conversion kit.
Review serviceability and purchasing details

Check replaceable components and minimum quantities

Some products include removable or replaceable components that can support ongoing use, such as an inflation fitting, inflation valve, tire valve, or eye bolt. Minimum order quantities differ among listed items, from one each on select plugs to larger quantities for other plug types.

  • The Clean-Seal plug has a replaceable inflation fitting.
  • The 2–3 inch sewer test-ball plug has a removable inflation valve that can be changed to a quick-disconnect fitting.
  • The 15 inch flow-through plug has a removable tire valve and removable 3/8 inch eye bolt.
  • Listed minimum orders include 1, 5, 6, 13, 14, 20, and 49, depending on the item.
FAQ

Common questions before buying

What is the difference between a test plug and a dust cover plug?

Test plugs are represented for plumbing, DWV, waste stack, or sewer testing applications. The 5 inch open-end pipe dust cover plug is for helping keep dust out of compatible open pipe ends and is not for pressure-test use.

Which plugs are used for waste stack testing?

The 4–6 inch long test-ball plug and the 6 inch long waste stack test-ball plug are listed for testing waste stacks from a floor drain to a sewer pipe.

When should I consider a bypass-equipped plug?

Consider a bypass-equipped plug when a compatible testing setup needs a threaded connection point or flow-through passage. Listed examples include 6 inch and 15–16 inch plugs with threaded bypasses and a 15 inch flow-through plug.

Do minimum order quantities vary?

Yes. Where listed, effective minimum orders range from 1 to 49, depending on the product.

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