when to flood test?

[remodel123]

On a traditional deck mudd shower base, When do you flood test?

[gueuzeman]

pre slope, liner, flood test, mud, tile, grout.

I think- but I don't do liners.

.

[Houston Remodeler]

yep, but I don't do liners anymore. They are soooooo 1990's

[cx]

Chad, what you flood test is the pan liner, not any part of a mud base. You got a liner installed?

[remodel123]

That's what I thought. But should the liner drain completely? What if I get areas
that don't? Do I need to tear out the liner and fix the part of the slope underneath first and then re-install it and try it again?

The two posts above mine say they don't do liners?

[silvercitytile]

i'de sugest you do some research. start in the liberry

[Brian in San Diego]

Originally Posted by Chad

The two posts above mine say they don't do liners?

The two pros who responded don't do liners because they don't build "traditional" showers. One of them builds showers using a surface applied liquid membrane and the other primarily builds Schluter Kerdi showers. Those two methods don't need a shower pan liner because the water doesn't get to the surface of the sloped mud bed.

[cx]

I think that's what he's doin' here, Jeff.

Yes, Chad, your liner should drain completely. If you've provided a flat slope from the top of the bottom section of your drain fitting upward at least one quarter inch per foot of run to the farthest corner of your perimeter, there should be no problem with it draining.

My opinion; worth price charged.

[davem]

You may have a few small wet spots after pulling the plug, due to wrinkles in the liner. If it's pitched as CX stated, all will be fine once the top layer of mud is in place because it will eliminate the wrinkles.

Now if you have a flat or, heaven forbid, a reverse pitched area on the floor and there's a wicked puddle left over, that won't do.