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I did. I think I actually had to screw past it to get a good seal. Did you end up using two solenoids?

Successful test run yesterday. As predicted, it was very difficult to get the top to seal. I really had to dog it down tight with a wrench. That's going to make recharging it very inconvenient. I thought thumbscrews were bad. Other design issue is that because the wear pad does not cover the...

Anyone have a feel for what the low-end temperature range is for coral? I am entering my first winter season with my system, which has the sump in an unheated garage. So far I've been able to keep it above 75F, but I fear heroic measures may be needed when it gets really cold. I've got 650...

I got some connectors at HD that are threaded on one side and RO Tubing push-ins on the other. Then I drilled and tapped the holes into the square part of the plug and threaded them in with teflon tape. Alternatively, I could have just drilled holes and stuck RO tubing through them, and sealed...

Ay-yi-yi, sorry to hear that Mike. Good luck, I'm sure the vinegar helped!

Thanks, I'll give it a try. I just bought a heat gun for bending plexi, that should work. Didn't know about the sand. I added a 3" circle of plexi glued to the bottom of the chamber with a bit of silicone. It's smaller than the tube so I can (hopefully) pry it off when/if it needs replacing. As...

Correction to the supplies list, that's 4 1/2" Acrylic Tube, not 4", don't want someone to order the wrong thing. Admin pleeze correct if possible.

I can do that. Thanks! My plan calls for the solenoids and pump to be up on top of my water tower anyway, so there's going to be no pressure-y pressure, ie, all pressure should be relleved by the output hole. But, like all walruses, I like a tight seal, and I don't want fresh, tasty kalkwasser...

They were signing "THANK YOU!" through the glass when I put them in the tank. ;)

I suppose I can make something combining a 4" slip cap and a male threaded adaptor -- that would seal, no?

I mean at the bottom of a 4-story 6" main distibution pipe. Those are iron though, and may have a lead collar, probably not reef-safe.

Zoiks, good to know.

You don't think it will seal tight enough? Why? I was going to use teflon tape on it. I've seen those caps used at the bottom of lo-o-o-o-o-ng pipes in sprinker systems. The top is going to be glued just with silicone so I can more easily adjust or modify it, so it's not really a high pressure...

The Elkhorn Acro, Before: After:

The Stirrer: Dry fit with the bottom flange and tube: The whole deal, before adding the support rod and upper flange: I'm experimenting with some kind of wear pad so the stir bar doesn't eventually wear though the bottom of the flange. This poly cutting sheet was OK but floated to the top...

Back when we had the little kalk reactor group buy, I decided to make my own and just buy the valve and the aqualifter, so here goes. As might be expected, costs quickly get out of control, but so far so good! Parts: Magnetic Stirrer, EBay, $65, the kind that holds a lab support rod in the back...

Wow Wendy, back atcha, beautiful photos. I like the FTS, very nice form, Those tables on the right are incredible.

It really helped. When I got the skimmer the output was a long piece of PVC hose. The way I had it positioned, it was blasting water right against the first baffle in my bubble trap. It was basically forcing the micro bubble-laden water through the trap. Now I have it terminated with a shorter...

Oh stop, no offense taken.

My Q-tank is all set up...I just didn't use it. I HAD A 200G TANK WITHOUT A SINGLE FISH IN IT AAAAAAAAAAAAAAARRRRRRGGGGGHHH!