It filters out surface scum off the top of your aquarium and a properly installed overflow is a clean addition to your aquarium. An overflow box is an entry point to setting up a sump. Chloroquine Phosphate Aquarium Dosing Calculatorįor anyone who has a reef tank or freshwater tank where one is considering a cleaner setup, an overflow box is a major consideration.Your return flow rate is your primary adjustment in this case. Tune your return flow until the drain runs quietly without any surging or gurgling down into your sump.This will automatically raise the water level inside that external overflow box and help reduce some splashing noise. The pipe should measure roughly 1' shorter than the emergency drain. Add a short standpipe to the primary drain inside the external overflow.Slowing down the return results in less splashing because the water is draining slower but will also require some minor adjustments to the gate valve to ensure that the water level is correct in the external overflow box. *You can then fine-tune the drain rate by adjusting both the gate valve and return flow rate. A siphon will start in the primary drain and the noise from water flowing through your surface skimmer weir will be reduced.

slowly close the gate valve to the point at which the water level inside the external overflow box raises to be roughly 1/2' below the top of the emergency drain.Turn on your pump, dial pump flow to the desired speed.*.Verify the gate valve on your primary drain is wide open.How do you silence the Eshopps Eclipse Overflow Boxes?īean Animal or Herbie Style Drain Using A Gate Valve From that point, just tune the flow rate and overflow to achieve the quietest operation as described below. So long as your return pump is not moving more than the advertised maximum flow rate for the overflow box, your good to go. Essentially, just fill your tank and turn on your pumps. When the water reaches the top of the standpipes, it will automatically start draining down into your sump. The Eshopps Eclipse overflow boxes do not need to be 'started' manually. How do you start the Eshopps Eclipse Overflow Boxes? Tighten the bulkhead nut and verify everything is level. Be sure the gaskets are placed in the correct location. Install the surface skimmer, bulkheads, and external overflow box.Using a hole-saw guide will help keep the drill bit perpendicular and be sure to keep it wet while drilling. Using the included hole-saw bit, carefully drill your hole in the glass.Take note of the arrow, it should be pointing up towards the top of your tank. Proceed to align the template on your tank wall and trace the location of your hole in the glass using a marker. Eshopps includes both the diamond-coated hole-saw drill bit and template to make drilling your glass much easier.The box will always be aligned with the surface of your water. It can technically go on any wall of the tank but most folks install it on the back wall either to one side or in the dead center.

Decide where exactly you want to install the box on your tank.

The external box extends only 3' outside of the tank.

The internal surface skimmer extends only 1.25' into the aquarium.

How big are the Eshopps Eclipse Overflow Boxes?

Slimmer profile and easier to disguise compared to traditional PVC pipe and bulkheads.

Provides an emergency or backup drain in case the primary drain clogs.

Helps to remove oils and debris that collects on the water's surface.

Prevents livestock from being sucked into the drain.

The specific design over an overflow box has some great benefits over just a hole in the tank. An overflow box is essentially the drain that allows water to pass through the aquarium walls and down into your sump and filtration.

Eclipse m overflow box