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The new 4" test ball is letting water past, very slowly but enough to invalidate the hydrostatic test. I can see every joint but not the test ball (it's in a sealed wye) so I know it's the test ball. I've drained and repositioned plug three times. It's a little better but still leaks slowly. So...

The old clawfoot I'm installing needs an 8 degree tapered gasket for the overflow to be vertical. All I have found so far are 11 degree gaskets. I've only seen the harder rubber ones; would the sponge rubber one deform enough for me to go vertical the extra three degrees? Any ideas where I can...

I've never seen a cleanout under a lavatory sink but now I have to put one in on a bathroom addition. It's a 2" waste and vent (needed to boost total area of VTR) that has a big change of direction before tying into the main drain. So I gather the cleanout t sits just above the trap san t...

If given either option, would it be better for a 3" closet waste wye coming into the main 4" waste line to be flat or rotated up some amount? I know that vents must be rotated up, but waste wyes? It seems like waste flow would be better if it was rotated up, but then again, perhaps the water...

I'll be tying into an existing 4" drain through the cleanout. This is in rural area with septic system with a pulled permit. The new bathroom will be roughly 8' by 8'. Some questions I have: 1. Is it okay to tie in to an existing cleanout? It's a straight 30 foot run directly to the septic...