Green drain provides an alternative to trap primer installations.
Shower drain trap on basement floor.
Set the shower pan in place and measure from the walls to determine the exact location of the drain.
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When a trap p.
Water in any trap under unused drains will eventually evaporate.
Position the shower drain.
If you notice a foul sewer smell in your house or basement here are the five possible causes in order of probability.
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Plumbing traps are necessary beneath shower drains because they retain a little bit of water that acts as a plug to prevent sewer gasses from backing up into the room.
Since this shower drain is in a base.
This will result in the need to step up about 6 inches to enter the shower stall.
Creating room for the drain slope as well as for a p trap installed in the drain line beneath the shower necessitates using an elevated shower base.
Many basement floor drains tie directly to the home s sewer system but in some communities local building codes require floor drains to run to a sump pit where a pump lifts the water to the exterior surface of the house.
The basement shower rough in features a small square where the contractor did not pour concrete but instead covered the plumbing stub with sand.
You can purchase an elevated shower base or frame one from treated lumber.
Basement floor drains don t get a lot of attention until the sewer backs up or the basement smells like an outhouse.
Finding the source of the basement smell.
This is necessary because a shower drain must have a p trap beneath the shower that connects the drain to the drainpipe.
Typically these traps lie beneath the floor but if you re installing shower on a cement slab such as in a basement the trap is above the cement slab.
Then set the pan in place again to check your work before you finally glue up the fittings.
As several others have already stated every drain needs a trap of some sort to prevent the maliforous scent of eau de pew from rising out of the drain and spreading its tendrils throughout your living space.