Hi, have a pentair filter, water is leaking out of the backwash and I think it is an issue with the push pull backwash valve. Unfortunately I'm not sure what type of valve/orings to get. AMazon has a couple that look identical. The valve is just sitting there with no obvious way to tell which type it is.
Here is some pics in case that helps.
DSC00308 | Flickr - Photo Sharing!
DSC00307 | Flickr - Photo Sharing!
can I just get something that looks similar or am I going to have to be precise?