105G Custom Shallow Paradise

JDigital · #1 12-18-2009, 08:32 PM

Quote:

Originally Posted by Delphinus

Boooo check valves.

Otherwise all top-notch build.

I can't complain about Check Valve, especially these ones, because they have yet to fail on me *Knock on wood*.

Quote:

Originally Posted by muck

Why not use some of these instead..

You should be able to pick them up at any Home Depot Rona in either the vacuum pipe aisle or the grey PVC ones by the electrical conduit pipe/fittings.

Ryan

MONEY!! Will Swing by a HD or Rona today.. even though the those L brackets work. Or Maybe just replace them when the time is right.

lastlight · #2 12-18-2009, 08:42 PM

Tile on the stand before you leave would be rad too. Let me know when you can get to that bro.

muck · #3 12-18-2009, 08:43 PM

Should be doable in 19 hrs... i would think.

JDigital · #4 12-18-2009, 10:15 PM

Quote:

Originally Posted by lastlight

Tile on the stand before you leave would be rad too. Let me know when you can get to that bro.

... Riiiight.. I might end up getting fishytime to finish my stand for me, when I get around to buying the supplies.

Delphinus · #5 12-18-2009, 10:24 PM

Check valves suck bro.. even fancy clear PVC ones won't sell me off that idea.

I'll never trust another one again for a sump return line. Having said that, I see your outputs are near the top so you probably don't really have a huge latent problem on your hands like those who submerge their return lines at half depth or more..

JDigital · #6 12-18-2009, 10:42 PM

The math of it all works out very close.. Sump will have a 10G allowable limit, plus I have an extra 5-6G in my refuge tank. Based on where my DT water level will be relative to my return bulkhead, I shouldn't have more that 14.1G flow back to the tank even if the Check Valve fails.

kien · #7 12-18-2009, 11:06 PM

I thought that check valves worked on a spring.. doesn't that restrict flow as well ? I suppose there are non-springy check valves? I wouldn't know, I haven't used one in a zillion years.. I wonder if fishy will come over and skin my new stand as well.. I have no motivation at all to skin the new stand.. heck, i hear he is doing plumbing these days too. I should just get him to finish my build.

JDigital · #8 12-18-2009, 11:11 PM

These "fancy clear PVC" check valves, have no metal or spring inside. It works on a rubber flaps that seals shut in the event of back flow. They do affect head pressure slightly.

To each their own I guess. I'm sure if they had failed on me in the past like Tony has experienced, I'd be un-easy to use them as well. But I've got a perfect history with them so I can only advocate them.