Lint filters and septic tanks
Hey everyone,
I am just getting into this thread as I've been out of pocket for the last week or so.
I may be jinxing this by saying, but my folks have been in their current home for 24 years on the same untouched septic system. My mother cooks a lot and repeatedly uses her garbage disposal (no bones or egg shells though) and her Kenmore w/self cleaning filter has been dumping lint into the system since day 1.
I am going to differ with John on the comment about the WP/KM basket mounted disk filters, but only for one very good reason. I would have said hands-down the same thing that these are nowhere near as effective as the previous recirculating manual filters OR the pump flushed self-cleaners, BUT last summer one accidental test I did proved otherwise:
If we are having a dry spell in the summer, I often rig a washer in the garage to do my laundry and discharge the water through a 25 foot long 4-inch pipe that I put out onto various spots on the lawn. It is a great way to double-use the water. One weekend I used three different machines, one with the Kenmore tub-mounted self-cleaning filter, one with a manual waterfall filter, and the other with a basket mounted disk. Keep in mind I used to think the disks were next to worthless.
When I moved the hose after each load, I noticed a huge wad of gray lint from the tub-mount self cleaner, then NOTHING from the manual clean, which makes sense, right? Well, after the disk filter machine was run, there was nearly as much built-up lint in the grass with it as the tub-mount. I was stunned. The main difference between the two is that the older self-cleaners discharge their lint fairly immediately upon pump-out in a big 'up chuck' mass, whereas the basket mounted ones let little volleys of lint come off all throughout the drain period, so the overall volume is not as noticeable unless you catch it all somehow with a strainer, ie. my lawn.
After saying this now my folk's septic will probably fail, but it's been unserviced and fine for 24 years, lint and food disposal and all.
Gordon