If you find bubbles forming, it could be a variety of things from too little flow to microbubble build up. Once the siphon is created it is important to keep air bubbles from forming in the U-tube. Once all the air is removed the airline tubing must be removed or submerged. You may be required to fill either the internal or external box with more water as the siphon is created. Replace the U-tube into the overflow making sure that the airline tubing is at the apex of the bend and using a pump like a Tom's Aqualifter to suck the air out of the tube until it is replaced with water. Remove the U-tube and place one end of the airline tubing into the U-tube. Start by filling the aquarium until water flows into the intake box, and then using a cup fill the external box with water until the U-tube end is covered. Just lower the overflow box onto your aquarium and then connect your favorite type of plumbing to the included 1" bulkhead.Ĭan be done with a 1-foot piece of airline tubing. Hang on back overflows do require more monitoring and safety precautions to be in place, but can be completely reliable if installed properly and maintained regularly. Installation only takes a couple of minutes, and the PF-800 only requires 3" of clearance outside the tank to drain water down to a sump, refugium, or wet/dry filter. In most cases, we would recommend drilling your aquarium and using an internal overflow like the Eshopps Eclipse, but in some situations, a HOB style overflow may be the best option. Traditional overflows require you to drill holes in your aquarium where Eshopps PF HOB overflows use a siphon to draw water over the wall of the tank without any modifications to your aquarium. Adding a sump to a tank will allow you to hide equipment and while adding water volume making your tank more stable. If you find bubbles forming, it could be a variety of things from too little flow to microbubble build up.Add an overflow to any aquarium with Eshopps PF series of hang on back overflows. Remove the U-tube and place one end of the airline tubing into the U-tube. Eshopps Overflow Box PF-300 Regular price: 69.99 Part : BB-10-09-11000 Quantity Sold Out Add to wish list Product Description Descriptions: The overflow box effectively transport aquarium water to under cabinet sumps, refugiums, or wet/dry filters. Use these easy-to-install overflow boxes to transport. Quality overflow boxes feature bulkhead fittings for secure and convenient installation. Eshopps overflow boxes are a great option for an aquarium that is not drilled and wanting to setup a sump. Start by filling the aquarium until water flows into the intake box, and then using a cup fill the external box with water until the U-tube end is covered. Eshopps PF-800 Hang On Overflow box is rated for 800 gph and up to a 125 gallon aquarium. Just lower the overflow box onto your aquarium and then connect your favorite type of plumbing to the included 1.5" bulkheads.Ĭan be done with a 1-foot piece of airline tubing. Hang on back overflows do require more monitoring and safety precautions to be in place, but can be completely reliable if installed properly and maintained regularly. Installation only takes a couple of minutes, and the PF-1800 only requires 4" of clearance outside the tank to drain water down to a sump, refugium, or wet/dry filter. Add an overflow to any aquarium with Eshopps PF series of hang on back overflows.
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