cartridge filter advise vacuum to waste

[Watermom]

Hi pberm1962 and welcome to the Pool Forum! I'm going to let someone else advise you about your plumbing issue. Just wanted to say and let you know that your post had been read. Hopefully someone else will be along later this evening who can help.

Hope you enjoy being a part of the forum!

[Poconos]

Welcome to the forum.
Probably the easiest and cheapest is to use a couple plain Jane ball valves from Home Depot, Lowes, etc. Put a PVC Tee ahead of the filter, ater the pump, and a ball valve in each leg. To dump to the lawn just close the filter valve and open the dump valve. They do make multi-port valves for this purpose but they are sort of specialty items and not found in home improvement stores. Thus more $$$. Once this thread gets into the general forum population someone else may comment on the cost of these multi-port valves.
Al