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Thread: ? about vacuuming to waste with a sand filter.

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    ? about vacuuming to waste with a sand filter.

    I have seen people on here say that they have vacuumed to waste.
    I have to dump some water because my CYA is a bit high and my calcium is around 480 so when I vacuum, I was thinking about lowering the water level that way increments at a time instead of all at once. It will take a few times but it would work but my question is how does the sand filter backwash? In other words, if I'm vacuuming, does the dust and dirt that I'm sucking up just go to the bottom side of the sand only to be blown back into the pool when I put the valve back on "filtration" or does the dirt bypass the sand and go directly out the drain hose?
    I just don't want the dirt to re-enter the pool.
    Does that make sense? I hope I'm explaining that right. I guess what I'm wondering is how the sand is backwashed? Normal filtration means the water is directed downward thru the sand but when backwashing, does it just reverse and flow upward and therefore will hold the dirt I'm trying to filter only to blow back when I go to filtration again?
    Sheesh! Hard to explain but you know what I mean....

    Thanks.
    Mesa Arizona. Old school 26,000 gallon in ground plaster pool with sand filter built in 1984.

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    Re: ? about vacuuming to waste with a sand filter.

    It bypasses the sand. Just make sure you rinse afterwards to get anything that might be left.
    18'x48" AG
    Pentair 1 1/2 HP Dynamo Pump
    Sand Dollar Sand Filter w/ Zeobrite
    Lil Shark Vacuum System
    Hard Plumbed

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    Re: ? about vacuuming to waste with a sand filter.

    Mine doesn't have a "rinse" cycle. It's either filtration or backwash.
    So if it bypasses the sand, how does it clean the sand?
    Mesa Arizona. Old school 26,000 gallon in ground plaster pool with sand filter built in 1984.

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    WestSidePool's Avatar
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    Re: ? about vacuuming to waste with a sand filter.

    The Waste and Recirculate setting bypass the filter completely.
    Waste heads right to your drain area, and recirculate sends it right back into the pool.

    How multiport valves operate.
    http://www.inyopools.com/HowToPage/how_ ... rates.aspx

    Quote Originally Posted by Mesamav
    Mine doesn't have a "rinse" cycle. It's either filtration or backwash.
    So if it bypasses the sand, how does it clean the sand?
    Since you posted this as I posted my response. What other settings does your valve have besides filter and backwash?
    Eric

    IG 17x33 Grecian - Vinyl Liner (21k gallons), Hayward Pro-Grid DE 4820 filter, Hayward Super Pump, CompuPool SWG CPSC36, TF-100 Test Kit

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    Re: ? about vacuuming to waste with a sand filter.

    Quote Originally Posted by WestSidePool
    The Waste and Recirculate setting bypass the filter completely.
    Waste heads right to your drain area, and recirculate sends it right back into the pool.

    How multiport valves operate.
    http://www.inyopools.com/HowToPage/how_ ... rates.aspx

    Quote Originally Posted by Mesamav
    Mine doesn't have a "rinse" cycle. It's either filtration or backwash.
    So if it bypasses the sand, how does it clean the sand?
    Since you posted this as I posted my response. What other settings does your valve have besides filter and backwash?
    That's not the kind of valve I have. Mine is a push/pull kind of valve.
    As far as I know, that's it. Filtration or backwash. That's all I got.
    Mesa Arizona. Old school 26,000 gallon in ground plaster pool with sand filter built in 1984.

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    WestSidePool's Avatar
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    Re: ? about vacuuming to waste with a sand filter.

    I don't have that style but from what it sounds like, the water, dirt, are pushed through the sand to your drain line.
    http://www.poolcenter.com/sand_de_filte ... h_page.htm

    Hopefully someone with more experience can chime in on this.
    Eric

    IG 17x33 Grecian - Vinyl Liner (21k gallons), Hayward Pro-Grid DE 4820 filter, Hayward Super Pump, CompuPool SWG CPSC36, TF-100 Test Kit

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    Mod Squad Bama Rambler's Avatar
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    Re: ? about vacuuming to waste with a sand filter.

    You can't vac to waste with that type valve. Do you have a faucet or 3-way valve on the discharge of the pump between the pump and. Filter?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: ? about vacuuming to waste with a sand filter.

    Quote Originally Posted by Bama Rambler
    You can't vac to waste with that type valve. Do you have a faucet or 3-way valve on the discharge of the pump between the pump and. Filter?
    Nope. The only other valve I have is the valve on the inlet to switch between the skimmer and the suction for the vacuum. It's not a big deal. I don't have to vacuum to waste. I can still use that line to lower the water level below the skimmer so I'm happy.
    Mesa Arizona. Old school 26,000 gallon in ground plaster pool with sand filter built in 1984.

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    Re: ? about vacuuming to waste with a sand filter.

    when we vacuum with our sand filter through waste we loose water out of the pool/filter even when we rinse the sand we loose water.
    Tracy
    Vinyl 16X48 Intex pool with SWG
    Pool holds 5061 gallons of water Using Taylor k-2006 test kit
    Intex Krystal Clear 1,600 Gallon Sand Filter and Krystal Clear SWG

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    Mod Squad Bama Rambler's Avatar
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    Re: ? about vacuuming to waste with a sand filter.

    Quote Originally Posted by ffmedicwife1997
    when we vacuum with our sand filter through waste we loose water out of the pool/filter even when we rinse the sand we loose water.
    That's exactly what's supposed to happen.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: ? about vacuuming to waste with a sand filter.

    Quote Originally Posted by Bama Rambler
    Quote Originally Posted by ffmedicwife1997
    when we vacuum with our sand filter through waste we loose water out of the pool/filter even when we rinse the sand we loose water.
    That's exactly what's supposed to happen.

    not anymore lol i bought the catfish vacuum today online..cant wait for it to get here. because everytime i would have to backwash or wasste i would loose watr like you sai but im the one also having the problems with my pool...He/or she may want to look into adiffternt vacuum system i got it for 72 on ebay...i coulnt afford much more so i haf to find a cheap one but had lots of good reviews
    Tracy
    Vinyl 16X48 Intex pool with SWG
    Pool holds 5061 gallons of water Using Taylor k-2006 test kit
    Intex Krystal Clear 1,600 Gallon Sand Filter and Krystal Clear SWG

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    poolmama67's Avatar
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    Re: ? about vacuuming to waste with a sand filter.

    Even with the separate vacuum, you will still need to backwash your sand filter.
    24 ft. round ABG-vinyl-15200 gallon
    Sand Filter w/1 1/2 HP pump
    Installed May 2011
    Taylor K-2006 test kit
    BBB method

    http://www.poolcalculator.com/
    pool-school/chlorine_cya_chart_shock
    pool-school/shocking_your_pool
    pool-school/pool_test_kit_comparison

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    Re: ? about vacuuming to waste with a sand filter.

    Quote Originally Posted by poolmama67
    Even with the separate vacuum, you will still need to backwash your sand filter.

    Oh yea I knew that I watch my dial on pump and the little glass tube off the side of it.. Sorry trying to still learn all the pool terms lol
    Tracy
    Vinyl 16X48 Intex pool with SWG
    Pool holds 5061 gallons of water Using Taylor k-2006 test kit
    Intex Krystal Clear 1,600 Gallon Sand Filter and Krystal Clear SWG

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