110-INT Classic suddenly overflowing

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Mar 22, 2016
Brian Sites wrote
I have been using my 110-INT for several months and all of the sudden it won't stop overflowing. I tried removing the exhaust port and it is not clogged. I tried power cycling it and running it for several hours: no effect. Even wide open it is overflowing continuously. It is running at a depth of 10" but it was doing so for months without overflowing. No new supplements or tank occupants. I tried putting my finger over the air silencer hole and it stops bubbling of course and stops overflowing. It is using the pump it came with. The only change was I bought a new lid for the overflow cup because I dropped the prior one.

Help!
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1 Answer
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Mar 22, 2016
Carlos agent wrote
There are several common reasons a protein skimmer will overflow but the most common is a chemical within the water itself.

Chemical Reaction - Some chemicals react with the air that the skimmer produces and causes the skimmer to over produce foamate. Chemicals known to cause skimmers to overflow are, red slime remover, medications, reef/frag putties (epoxy Putty) frag glues, water conditioners, dechlorinators, stress coat, NEW filter socks, newly mixed salt, bacteria (seeding) additives as well as other dosing medias. In order to remove these chemicals from the water column we suggest that you do several 20% water changes over the period of a month and add a good amount of fresh activated carbon to the system and change out every week till the skimmer has returned to normal operation.

Water level in sump - It is important that you place your skimmer in the proper water level. It is also important that the output of the skimmer is not submerged under water unless it is properly vented.

Inner water level - If your inner water level is set too high the slightest change in your water chemistry can cause your skimmer to over flow. We suggest that your inner water level to be set at no higher than the collar where the cup meets the body.

Blockage - The air intake otherwise known as the venturi, is like small vacuum pulling air from the surrounding environment. Often collecting dust and debris from the air which can block the proper amount of air to enter the pump increasing the water being pulled by the pump. It is also common for saltcreap to build up in the venturi and will need to be removed manually by scraping it away or dissolving in a solution of vinegar and water. Make sure you inspect the air venture, silencer and air hose for any debris or salt creep deposits. Also be sure the air hose is not bent or too long preventing proper air flow into the pump.