Adding drain to the curved skimmer cup.

[exnisstech]

Hey all. I have a octo classic 150 S laying around that I'm thinking of adding to the sump of my reefer 170. I would like to add a drain to the cup so I don't have to remove the cup every time just to drain it. Since there is no flat bottom to drill into I'm wondering if it would be possible to place a drain down low on the side of the cup. Since it's curved would I be able to get it to seal? I'm thinking maybe tapping and using a threaded fitting but thought I would seek advise before I damage the cup and render the skimmer useless.

 

[Tonycass12]

I wonder if they make unseals that small. I would be hesitant to try tapping a curved surface like that.

 

[Tonycass12]

Looks like they only go down to half inch but I know these work well on curved surfaces. https://www.bulkreefsupply.com/uniseal-bulkheads.html

 

[Koh23]

Or simply make hole, push fitting trough that hole, and seal with expoxy...

When dried its transparent, do it neat and u will barely notice seam.....

 

[exnisstech]

Or simply make hole, push fitting trough that hole, and seal with expoxy...

When dried its transparent, do it neat and u will barely notice seam.....

Thanks This may be the best option. The uniseal only goes down to 1/2 pvc and requires a 1.25" hole so way too big. I think I'll pick up a plastic fitting and glue it in. I might even be able to get one with a nut for added strength kind of like they have on the float valves I have on my brute containers.

 

[minus9]

1/4" Black Uniseal® Pipe-to-Tank Seal | U.S. Plastic Corp.

Uniseal® products replace traditional plumbing hardware with a single injection molded unit requiring no component parts. It was designed...

www.usplastic.com

 

[Koh23]

I simply use attachment that comes with any cheap powerhead, drill the hole in cup, use drop of ca glue to hold it in place then add epoxy around.....

Voila, in few minutes....

Bigger fear was actualy to drill hole, dont use pressure, acrilyc can crack easily.....

 

[homer1475]

I did something similar with a 1/4" john guest fitting(the ones you use in RO/DI setups) and RO/DI line.

I drilled, then tapped the hole. Then wrapped the fitting in a few wraps of teflon tape, screwed it in. Hasn't leaked in years.

 

[The Farmer]

There it’s any pressure in the cup, any type of sealing you can do will work

 

[The Farmer]

You can also buy acrylic tubing and drill the hole on the side and use acrylic Weldon #4 and glue an inch length of tube and apply any silicone tubing to that for a drain

 

[homer1475]

You can also buy acrylic tubing and drill the hole on the side and use acrylic Weldon #4 and glue an inch length of tube and apply any silicone tubing to that for a drain

Never would have thought of that. Would probably look much cleaner then my suggestion.

 

[The Farmer]