Two interesting videos about Sand Filters
- Thread starter mkdsk101
- Start date
For someone who doesn't and has never owned a sand filter, I found them to be nice videos. The only thing I would disagree on is the fact that he says you don't need to worry about the pressure gauge. Thanks for posting those vids! 
I wonder if it is true that a dirty filter cleans the best. This guy has been in this business for 20 something years.
I believe a dirty filter cleans a bit better. But only until it's too dirty to allow proper flow. I didn't watch the videos but I certainly agree with Casey - the pressure gauge is extremely important. 25% above clean pressure, means time to backwash.
If I were to wait until my water came to a trickle, I'd have blown out plumbing. My VF pump keeps the flow the same regardless of restriction. The pump itself tells me when to backwash based on criteria I have pre-programmed into the system.
Also he talks about the need for a rinse setting. My valve doesn't have rinse, and works just fine. I just let the sand settle for a minute or two before going back to filter.
Is that Phos Free on his top shelf?
Also he talks about the need for a rinse setting. My valve doesn't have rinse, and works just fine. I just let the sand settle for a minute or two before going back to filter.
Is that Phos Free on his top shelf?
Robbie,
I don't want to hi-jack the thread at all but don't you get a plume of dirty water when you return to "filter" from "backwash" (since you don't have "rinse")
I'm gonna' talk to my Pentair filter engineer buddy about a couple of things in that video and I'll post some comments back up after we speak.
I don't want to hi-jack the thread at all but don't you get a plume of dirty water when you return to "filter" from "backwash" (since you don't have "rinse")
I'm gonna' talk to my Pentair filter engineer buddy about a couple of things in that video and I'll post some comments back up after we speak.
Yes duraleigh, i am interested if your Pentair filter engineer agrees with this guy or not. 
I don't get a plume at all. I just make sure I backwash really well, let it sit for a minute or two, then restart in filter. No problems at all.
Man, it just shows how different each pool is. I get a little plume even if I "rinse" for 3 minutes. I'm gonna' try rinsing and then letting it sit for a while like you do.....I'll bet that solves my problem.
2nd subject - when to backwash....no word from pentair yet.....I'll keep trying.
When I first moved in, I was using a T100 filter that was installed in 1989 (we found the receipt). Worked great for a while then suddenly I was getting sand in the pool no matter what. I decided that it was old enough I wasn't going to try repairing it and put in the exact same T100. Problem solved, and like I said I never, and I mean NEVER, get any plume or sand into the pool. I've been so happy with the simplicity of my equipment, it almost takes the sting out of it all. I should post pictures of my plumbing and such again. It's bone stock simple. One skimmer, one main drain, 4 returns all at the shallow end blowing at the deep end (although during the replaster we put in standard returns and I modified the eyeballs so they circulate the water), then in the equipment room there is just the pump, SWG, and filter, with the plunger style diverter for filter/backwash. No valves, etc. I guess that's what you got in 1957.
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