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The Aqua Lifter pumps are a cheap insurance policy against siphon restriction through the overflow box. Note - We highly recommend using an Aqua Lifter pump to prime the overflow box continuously. We do not recommend using DC return pumps with overflow boxes since they have variable flow, and once the overflow box is tuned the return pumps flow rate should not be increased. Noise of a large concern for all types of overflows and the OM2500 uses a durso style wedge pipe that allows you to tune the drain flow by just turning the wedge pipe until the noise stops. All HOB overflow boxes work off a siphon principal, pulling water out of your aquarium, over the edge and the directed into a bulkhead that is included with the OM2500.

With an established tank, drilling and plumbing the aquarium isn't really an option. On many ocassions we have set up tanks and then a few months after decide to add a sump. The durso style valve lets you fine tune the overflows drain rate, making it completely silent.Įxternal overflow boxes give you the ability to add a sump or added filtration to your aquarium without the complication of drilling your existing aquarium. Adding a sump to a tank is super easy with the Skimz OM2500, just place the hang on back overflow box onto the edge of your aquarium, and using 1 1/4" soft vinyl tubing you can plumb the box to a sump. Skimz External Overflow Boxes are a great addition for tanks that do not currently have a drain system. Plastic Square Drainage Catch Basin in Black, 2 Opening Kit Does your lawn or downspout areas around Does your lawn or downspout areas around your home flood from rain Soggy lawns and murky puddles arent just eyesores.