[AquaticLife] Auto Top Off Units
You could use a sump tank and overflow unit so the sump would pump water up to the overflow level at all times. You would then only have to top off the sump on a less regular basis, depending on the size of the sump tank. I worked on some plans for myself before Katrina that would utilize my existing canister filter as the pump so I would just have to buy an overflow box like this one… http://www.marinedepot.com/ps_ViewItem.aspx?idproduct=CR1511 as the only added expense (since I have an extra 10G or 20G tank). Just make sure you get an overflow box rated a little higher than the gph of your canister filter or pump. My plans were to adjust the intake height in the sump tank so that it was high enough in the sump so that it could never overflow the main tank in the event of siphon loss in the overflow box. Of course, if you drilled the main tank for an overflow, you wouldn’t have that worry. You could also adjust the overflow down to where your main tank could handle the entire 10G of sump water without overflowing. There are many options.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com
Category: Philippines Internet Koi Society
