Have a 60sqft FNS Plus DE filter. As I'm changing out my pump while I'm having the pool resurfaced, figured I'd take the time to do something I've always wanted to do- add a drain line to the bottom drain plug. It's a standard 1.5" tapered thread, and the plug has got an o-ring on it. I'm assuming the o-ring is there a) because of the pressure involved and 2) because the threaded area is "short" and there's less of a chance of a good seal.
The major issue here is vertical clearance. The most compact combination I can get is with a male-to-slip and then a 90 degree street elbow- but it's still too tall. I need to do more research on specialty connectors online to see if I can make this work. I would rather not have the filter on a raised base simply because of the multiport valve in place and all the plumbing I'd have to re-do.
Any one have success with this? Especially on the connection to the filter base threads- possibly cementing in place?