Benze
New Member
Hi,
I noticed that the 4" ABS Bow Backwater Valve at the local hardware store has the inlet side about 3/4" higher than the outlet side. I understand that this is standard in new construction.
Does anybody know if they make a retrofit BWV that I can use with my Cast Iron sewer line that doesn't have that 3/4" drop? There is no way for me to magically make the outlet side 3/4" lower without tearing up my entire concrete slab, which I have no desire or intention of doing.
Thanks,
Eric
I noticed that the 4" ABS Bow Backwater Valve at the local hardware store has the inlet side about 3/4" higher than the outlet side. I understand that this is standard in new construction.
Does anybody know if they make a retrofit BWV that I can use with my Cast Iron sewer line that doesn't have that 3/4" drop? There is no way for me to magically make the outlet side 3/4" lower without tearing up my entire concrete slab, which I have no desire or intention of doing.
Thanks,
Eric