First, here are links to my threads about this pool over in "Just Getting Started":
#1 - Help? Giant Pond That's Supposed to Be a Pool?
#2 - My "Giant Pond" is Almost a Real Pool! And Some Questions...
We're thinking of replacing our Hayward Vari-Flo valve. It's quite old. According to what I've read, it was probably manufactured, at the latest, 1976 (unless this one is a later replacement model?). It's functioning, but not well. The handle is very hard to turn, and it leaks around the handle. We either need to replace the spider gasket and who knows what else inside --basically rebuild it -- or replace the whole thing. The model number on it (barely readable, but can still make it out) says SP0710\X62. I can order a rebuild kit for the spider gasket, and other various parts, if needed. I found what appears to be a replacement model for it at Amazon (have seen them elsewhere, but this was the best deal I saw). Here's a link to that: Hayward SP0710X62 Pro-Series Vari-Flo Replacement 1-1/2-Inch Control Valve Assembly with Gauge. The picture matches what we have, and our plumbing is 1 1/2". It looks to be sold directly from Amazon, and not a third-party seller, and they are offering free shipping on it, too, and all of that seems good. This looks like a good deal; right?
So, if this was yours, what would you do? We are inclined to just replace the whole thing. That way we'd know it was all new inside, and should be functioning properly. But it would be cheaper to just try to rebuild it (maybe half or less than the cost of a replacement).
Also, is there anything special we need to know about doing something like this? And what precautions should we take with the pool itself if we are leaving it without filtration while this repair is going on? It seems like it might not take too long, IF we don't run into any other problems in the process, so I figure we need to be ready for whatever might happen.
Thanks in advance!