I am on my second pump. I am using small pond pumps for my first aquaponics system. I am doing the new "shelfponics" thing. Are these things known for going out? I have a 132 gallons per hour pump at about a 3-4 foot rise. It started out going great, now we are barely pushing out a trickle of water. Grrrrrrr. Any suggestions?
even little mag drive pumps without a bearing can heat up to the point of melting/deforming plastic if you allow them to totally clog up.
Little sponge filters generally need cleaning a couple times a day once an aquaponic system gets cycled up. I don't recommend those little sponges. Expanding the surface area of screen for the pump's intake definitely helps. Keeping leaves and other large debris out of the tank with the pump also helps.