Marcus Mckenzie
New Member
So i did a new rough-in for a tub/shower unit at a customers house ,(Grohe valve) i ran new 1/2 pex to valve at all four spots, when i went to test the water coming out of the valve ,water comes out of the spout & also the shower nipple too crazy i did look at valve and it was not installed upside-down ,also i pulled the cartridge and changed with a new one , help i don't know what to do.