so lately it seems like i have been getting a lot of air bubbles stuck in my overflow and had to manually syphon them out. today i decided to change my tubing all out and clean my pump and boom! a huge air bubble that was stuck before just blew right out when i turned the pump on with new tubing, my auto top off probably added about 1/4 gallon to the tank as well, just goes to show you that keeping your tubing clean can increase flow in the tank.
i use vinyl tubing for my return pump so tubing is cheap, roughly 30 cents a foot so 4 feet cost me just over $1 after tax and it fixed my air bubble problem and gave me more flow at the same time.
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