I have just completed construction of a 2 story home. It appears that the shower, when on is leaking through the membrane (according to plumber) and down the frame to the garage below.
We have tested the pipes by running the shower head directly over the waste for about 30 mins. Plumber says rate of dripping increased when we ppointed the shower head at the corner.
I disaggree.
Needless to say I need help asap.
thanks
desperate home owner