Hello TFP people. I've been lurking for a year, finally registered and here's the first post!
A little over one year ago, we started getting rashes from our tub (2005 Jacuzzi J-335). I had been having trouble keeping it balanced in the year prior, using Nature2 since day 1. A co-worker turned me on to TFP - he runs his in-ground pool using the methods here. After getting the nice taylor K-2006 kit and doing a seaklear flush, I got started with a bleach only program. The only thing I found tricky was daily checking and keeping the FC from zeroing. You go out of town for two days and blam! So, I added a Saltron over-the-side generator and salt. Ran it like this for a year without a flush, drain and fill, or any balance issues. Only had to add muriatic acid to keep PH around 7.6 and shots of bleach before or after soaks - what a great system!
Then last week, I notice the GFCI is tripped. I troubleshot down to the 24hr circulation pump (which is also about 1 year old...). Ok, gotta get back to that later - it's winter in the north, so I drained and winterized the tub until spring. BUT, when I pulled the filters, I found a strange residue on the endcaps. It was slimy, but not like an algae, more like a chemical 'melting' of the rubber. It dried to a powdery residue. Unfortunately, I didn't check the water before dumping the tub, but the only think I could imagine is that the PH was way far off...
Anyone ever seen this?