Originally Posted by chem geekI see this section has not been responded to in one year but I thought I would chime in.Originally Posted by JasonLion
new to pools last one 25 years ago. inherited a home near foreclosure that had a pool. chems were used/dichlor.
started there last summer since that is what they left behind.
it had a SWG the beeped all last summer but pool was nice, swam only once.
worked on house all summer/fall/winter/spring..still a on going project expect will be near done by Christmas.
now, have a pump very small leak and found a SWG board burnt up, fleabay bought and replaced to find they did not
have screws holding heat sink at transistors...no wonder why it fried. I believe it is about 15+ years old and still works.
even though I have read this BB or forum for some time I have yet to read anything much about the biology of the sand
filter. chem geek has a lot of info on the chemistry of a pool for sure as do many others here for a while. it rubs off.
now to jasons comment; where no one really knows well it may be where the filter biology comes in.
sand about ten days after it has been backflushed starts to build up bacteria like a under water gravel fish tank. it may be
the bacteria that helps eat up some of the dead "super chlorinated" floating algea. since a pool usually cycles the water
through the filter and chlorinator once or more a day.
it does not mean you do not have to brush your pool from time to time...you still do. otherwise you would not get the floating