Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Some noob questions

  1. Back To Top    #1
    Charlize's Avatar
    Join Date
    Aug 2009
    Location
    Thailand
    Posts
    63

    Some noob questions

    We just finished starting up our new pool and i have a few questions:

    is it possible to backwash too much? For example, is backwashing twice in one day too much? I know i should look at the pressure on the sandfilter, but sometimes i am leaving in the afternoon when the pump starts and i want to backwash just to be sure the system is ok for a 6h session.

    when i vacuum, i know i should not get the hose over the water. But if i do this my mistake, how dangerous is it? i am trying to evaluate if the kids can vacuum sometimes.
    12x6 meters freeform, 1,2-1,5 meter deep, IG, ceramic tiles, 20000 gallons of water, SWG (hurlcon vx 11T, 42 g/h), 3 hp pump (astralpool victoria plus), sand filter (35in, flow rate: 32 cubic meter /h).

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    8,617

    Re: Some noob questions

    Backwashing "too much" would only lead to excessive water use. I can't imagine an appropriately sized sand filter needing backwashed after 6 hours running unless the pool is an absolute mess. I backwashed mine 5 or 6 times this past summer other than after vacuuming, and most of those weren't needed, but were done while I was pumping excess rain water out of the pool.

    If you lift the vac out of the water, the pump may lose prime or the vacuum hose may be emptied. Neither is a problem unless the pump is left running in that condition. If the kids know how to refill the vacuum hose and reprime the pump, you probably don't have to worry.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3
    polyvue's Avatar
    Join Date
    Aug 2009
    Location
    Sacramento, California USA
    Posts
    1,215

    Re: Some noob questions

    Quote Originally Posted by Charlize
    I want to backwash just to be sure the system is ok for a 6h session
    I think John answered your questions, but your reference to a '6h session' has me puzzled. Does this mean that you're concerned that the filter pressure will rise significantly in that time period?

    Or perhaps you have caught that dreaded disease, sparklypoolitis? It commonly afflicts new pool owners and may initially present as a tendency to be methodical, careful or very thorough in the management of pool facilities and/or water testing and treatment. Disease progression is likely in patients with idealistic or perfectionist genes, some of whom develop obsessive traits that may include frequent testing of pool water; compulsive categorizing or display of supplies and equipment; involuntary outbursts and bombastic claims about water clarity and testing proficiency; and, in some patients, repeated vacuuming/backwashing--an attempt to foil atmospheric particles fallen into the water. Prognosis is indeterminate and varies with patient, but severe symptoms can be expected to subside over time. See also New Car syndrome.
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
    __
    View of spiral galaxy in Ursa Major NGC6217 - Hubble Telescope 2009

  4. Back To Top    #4
    Charlize's Avatar
    Join Date
    Aug 2009
    Location
    Thailand
    Posts
    63

    Re: Some noob questions

    i am just trying to learn more. but i am sure i am in the risk group for getting the new pool disease, hehe. tx for the symptoms list
    12x6 meters freeform, 1,2-1,5 meter deep, IG, ceramic tiles, 20000 gallons of water, SWG (hurlcon vx 11T, 42 g/h), 3 hp pump (astralpool victoria plus), sand filter (35in, flow rate: 32 cubic meter /h).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •