Emergency plumbing
Drain diagnostics
Hydro jetting
Sewer line repair
Leaks & water mains
Mechanical service
Storm & flood response
Underground & excavation
Homeowners
Strata councils
Property managers
Renovations & restoration
Straightening out a parkade full of sagging drain lines.
Drain lines hanging over a Coquitlam parkade had slipped out of line, sagged, or had loose couplings. We worked through the list stall by stall, regrading runs and replacing couplings and sections of cast iron, then tested the drains once residents were home and using them.
Drains that had drifted out of line.
Earlier inspections had found drain lines over the parkade that were out of alignment, sloping the wrong way, or held together with loose couplings. Water sitting in a pipe that slopes the wrong way leaves buildup behind, and a loose coupling can start dripping onto the cars below.
Some of the bathroom sink drains from the suites above came down through the concrete slab at the wrong angle, so they couldn’t drain properly even where the pipe below was fine.
Stall by stall, joint by joint.
We worked through the list one location at a time: realigning runs at more than a dozen stalls, tightening or replacing no-hub couplings, and replacing a few sections with new cast iron where the pipe had to be regraded.
Where sink drains came through the slab at the wrong angle, we cut the horizontal lines back and raised the connections so they slope properly. We also straightened a storm drain trap that something had knocked out of line.
Fix the slope, then prove it works.
A drain only works if it runs downhill the whole way.
Work the list
Go location by location from the earlier inspection.Realign and regrade
Straighten each run and set the right slope.Replace couplings
Tighten or swap loose couplings and worn sections.Test under use
Check the drains once residents are home and using them.Drains that slope the right way again.
Every location on the list was corrected, and the drains were tested under normal use once residents came home. The strata has a stall-by-stall record of what was done at each spot.
More than a dozen runs realigned and regraded
Loose couplings tightened or replaced
Back-sloped sink drains raised through the slab
Drains tested under normal use
Start with the problem. We will help plan the next step.
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