best backwater valves
 

Can people recommend best backwater valves?

Can thye recommend which valves to stay away from?

Pat

I assume you mean check vlaves??? Buy from a plumbing supply house, not from big box, that will help with product quality.

backwater valves
 

i mean a sewer DWV backwater valve, like a pasco or sioux chief
or whatever

I can't really say which one is better than all the rest but make sure that the one you buy is UL or CSA approved. And buy from a plumbing supply house as JBill suggests, not big box. Big box pretty much sells crap.

I use this one quite often. Excellent for deep installations such as outside basements. You can get them in ABS or PVC.
http://www.rectorseal.com/index.php?...product_id=316