Zoeller Filter, Septic Tank by

Slipped in to the existing 4" tee, sweet as you please. Filter removal (for cleaning) is easy. Design is clever in it's simplicity.

Superior filter in filter design, good quality material.

Got this when it was time to bring my septic system up to new standards. I believe effluent filters are now code for new septic tank installs. My system functioned well since 1968, but after discovering that both my concrete baffles failed due to age, I decided to bring things up to new standards. Construction of filter assembly seems excellent. Zoeller is a trusted name, I will update review should something happen to warrant update.

Very easy to install, though it didn't seemed like it was fighting me until the final "CLICK", then it was in. Just watch the orientation of the filter housing to the "T" fitting at the tank's exit port, it's explained clearly in the installation instructions. I installed this when I had the tank open for pumping. Installation was literally 30 seconds. I'll check it in the spring to see if it needs a rinse.

* Note, photo includes filter without collar (in tank) and with recommended (not included) self-installed 1/2" PVC extension handle. I included a 1/8" stainless through bolt to connect the two. The product seems to have been updated since its original design very minimally. The color is now blue (not green) but its function is unchanged. It is appropriate for a retro-fit (adding a filter where there was not one) as long as there's an opening above the septic tank's effluent exit tee and the tee is a 4" PVC (or other 4" plastic) fitting. The plastic fitting on my tank was a lighter gauge plastic, (maybe not even PVC?), definitely not Schedule 40. The tank was installed in the early 90's and was in excellent condition. I installed a 6" Schedule 40 PVC pipe as an inspection hole riser, and this made the access down to the filter and tee even tighter. But, the filter (as you disconnect it) has some wobble and give, and cleared the tight opening above without any issue. Since this was part of a drainage field upgrade including an improved distribution box, I'm relieved to know that, should some odd circumstance occur between pumpings and solids attempt to move through the effluent exit, this filter will trap and prevent them from entering the drain field. Most codes now require them, effluent filters are worth the peace of mind.