Gang,
I finally got enough RO water in the tank and sump early this morning to run an actual test of the setup. Looks pretty good, but I'd like to optimize the drain rate. (Who doesn't?)
Here's the setup:
Effectively a 1" drain with
ball valve directly under the glass and a straight hose barb adapter threaded in. I've got clear 1" id vinyl hose clamped to that and dropped over the rim of a brute trash can behind it. The top of the brute is at about the same level as the bottom of the tank. I did it this way just to get things going and know I need to change it to improve the flow. (Also so I could leave the ro fill-up going without worry.)
Issues I think are hurting flow:
1) Straight hose barb means the hose has to drop upwards of a foot before arcing back up over the rim of the bucket. Would a 90 degree barb help?
2) Should I do a bulkhead on the brute at the same height as the return?
3) Should I drop hose and use straight pvc?
Currently, I'm testing with just a 13" piece of pvc inside the tank in the drain bulkhead. When I tested with a 90 stuck on top of that, the return seemed to overpower the drain. Well, actually, I ran out of water on the sump before I could really be sure, but it looked to be heading that way.
The return pump is an Ocean Runner 6500 with ten feet of 3/4" hose connected to a similar vertical piece with just a t screwed on top. I know it's likely too much for this drain as is, but the outflow I'll end up with will be more restricted and will minimize that risk.
I'd appreciate any pointers,
Dan
P.S. I've also got ten feet of each hose in the loop. I'm sure that's not helping.
