Good evening everyone,
I've been lurking and studying for a while here, love the site and everything I've been able to learn. My parents have had a pool since the 90's so I'm pretty familiar with all of the components and such, mostly with IG vinyl pools and sand filters.
We're closing on a house this week, which has an IG gunnite pool, which I have no idea yet as far as capacity. I will be able to get more measurements on that later this week.
It has a Hayward pump and DE filter, but no multiport valve. One skimmer and one main drain. I've attached a picture of the pump/filter/plumbing. From what I can tell, the drain and skimmer T together somewhere before the pump intake (2nd pipe in picture). The discharge of the pump goes up to a valve which sends it through the filter, or to the third pipe which I think goes to my sewer line. That third pipe has a hose spigot and I think a DE separator.
I think I have that correct that the third pipe is the waste line that completely bypasses the filter. Can anyone confirm this?