View Full Version : shortening skimmer

01/29/2011, 11:56 AM
hey i just put a new sump under my tank and due to the increase in thickness of the new sump, my skimmer is 1/4inch too tall. could i shorten the collection cup? if so how?

Helter Skilter
01/29/2011, 12:07 PM
This is the perfect excuse to upgrade your skimmer. Seems like a lot less trouble than modding a skimmer, which will make it harder to sell and may negatively affect performance.

When opportunity knocks, answer.

01/29/2011, 12:36 PM
So with the extra 1/4" you cant get the cup off, or is it just a pain to do?

gary faulkner
01/29/2011, 05:08 PM
Shortening the top of the cup will not hurt anything. Just be careful making the cut so it is symmetrical.


richard king
01/29/2011, 05:31 PM
What kind of skimmer do you have? Typically, I can't imagine so little off the collection cup would make much difference. You MAY have to take the same amount off the riser too though. That is where the quarter inch might make a difference. Something to think about.

01/29/2011, 08:22 PM
i cant take the cup off due to the 1/4 inch. id like to upgrade really but an insump skimmer for a 220 is not that cheap. the skimmer i have now rocks. its a modded euro-reef.
yea i was thinking id trim it down and do the riser lip as well. then maybe even set it up to run an external coleection cup......

01/30/2011, 12:04 AM
how thick is the bottom of the cabinet? you could possible cut out a small square depending how think it is.

01/31/2011, 03:05 PM
never thought of that. id would be sitting on the carpet but i guess that might not be all bad

02/01/2011, 01:25 AM
If it will fit, but the cup won't come off, why not just tap the cup and run an external collection cup?

02/01/2011, 02:42 AM
If you end up cutting out the bottom of the cabinet you could cut it large enough for a flat bottom tupperware bowl to sit in and then set the skimmer in that to protect the carpet from any leaks.

02/01/2011, 06:48 PM
Do you have access to a tablesaw and some acrylic cement? If so, you could carefully cut the bottom of the skimmer, trim off how much you want on a second cut, then weld it back together. Be sure to use a blade that is made especially for cutting plastic. I'm going to be opening the bottom of my skimmer like this to mod it, since I can't get a bubble plate in from the neck...

02/01/2011, 08:15 PM
i think geo is gonna help me. we will likely remove a small amount from the collection cup then tap it to run an external collection cup.
great to have him local!
ill keep you all posted