Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Just bought a house with a pool - questions

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    Louisville, KY
    Posts
    50

    Just bought a house with a pool - questions

    Hi all,

    My wife and I are purchasing a home with a 38,000 gallon in-ground vinyl liner pool. I've spent a good portion of this evening reading the "pool school" topics, but I need a little help.

    The pool needs a new pump & filter. After reading through the pool school threads, i'm thinking cartridge filter is the route I'd like to go. Can anyone help recommend a brand or size pump and filter I would need for a pool this size?

    It sounds like this pool has not been used for a few years. I pulled the cover off to take a look. It's not completely green, but it's got crud all in it and even some small tadpols. The good news is that the pool is relatively full, about a foot or two away from being full, likely due to evaporation over the past few years. To me, that means it likely doesn't have any rips or tears in the liner. Being that the water has sat for a couple of years, should I drain all the water and start from scratch, or should I just clean out at much leaves/tadpoles as I can with the net and start with the water that's in there?

    Any help and advice is appreciated!
    38,000 gallon IG pool Plaster bottom & fiberglass walls
    Jandy FloPro 1.5hp, 2-speed pump
    Hayward S310T2 sand filter
    CompuPool CPSC36 SWG

  2. Back To Top    #2
    msgtdan's Avatar
    Join Date
    Jul 2011
    Location
    SW MO
    Posts
    653

    Re: Just bought a house with a pool - questions

    Welcome to the forum

    I can't advise on the filter or pump. You want to be very careful about draining a pool, it can cause all sorts of problems. Doing partial drain and refills is the usual recommendation. If all the equipment is operational I'd probably just fill it back up and clean it up.
    Dan D
    Used 2003 Aqua Leader 27'x52", 17,800 w/10" hopper, SwimPro SW256T 250# sand filter, Hayward PowerFlo LX pump 1hp impellor, Emerson 1 1/2 hp motor, setup Aug 2012 Summer 2011 used Summer Escapes Ring pool 14' x 42", Intex 1600gph sand filter, HTH 6 way test kitTF-100 w/stirrer, Well water @ FC=0, PH=7.2, TA=290, CH=320

  3. Back To Top    #3
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Just bought a house with a pool - questions

    I have a similar sized vinyl and have a 1.5 HP Hayward pump, if you have water features (fountain, waterfall, etc. ) you might need somthing larger, otherwise the best bet is probably a 2 speed pump in the 1.5 HP range. As to filter, in general bigger is better, within certain ranges.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Just bought a house with a pool - questions

    General recommendation I have seen for cart filter is 15 sqft / 1000 gallons. That means a BIG filter for you.

    I would think even a 2 speed 1 HP could be enough if there is nothing requiring higher flow rates ... depending on the motor's service factor.

    May depend on whether your current pump is 120 or 240 volt as to what would be the easiest to install.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5
    Smykowski's Avatar
    Join Date
    Sep 2011
    Location
    Gurnee, IL (North Suburban Chi-town)
    Posts
    3,065

    Re: Just bought a house with a pool - questions

    The decision to clear green water or start with new water is going to depend on a couple of things.

    Where is the water table? Or a better question, since a total drain on an inground pool is really not a good idea, how many partial drains will you have to do? If you're doing multiple partial drains, how much does the water cost? What's in the fill water? How much money will you spend with "fresh water" rebalancing TA, and stabilizer, because that should be factored in the cost analysis?

    From all of the forum members that have done it, in general it seems to be that clearing green water is cheaper than replacing it. The one caveat is if the CYA level is in the triple digits, then a drain would be required. I would bet that with the amount of time it sat uncovered, your CYA is not too high. Your own testing will tell.

    Let us know what you decide, and whichever route you go, we'll help.

    Please take pictures. It's a lot of fun to see an abandoned pool go from muck to pristine.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  6. Back To Top    #6

    Join Date
    Jun 2012
    Location
    Louisville, KY
    Posts
    50

    Re: Just bought a house with a pool - questions

    Well, I had a pool guy out to take a look and give me some quotes. He advised that I do NOT have a vinyl liner, but rather a plaster pool with a plastic cover on the sides? Does that sound right? That's the first I'd heard of that.

    He advised that it's been sitting for a few years and recommended a complete drain, acid wash, and refill. The water its self is pretty clear, even at the deep end, you can see about 4-5 feet down, but there is a LOT of **** at the bottom of the pool, and the walls look a little green-stained.

    He also recommended a 2hp pump. Is that overkill for a 38k gallon pool? From what I've read on this site, it sounded like a 1.5hp 2 speed pump was the way to go?

    He also recommended a sand filter. I know this sounds like personal preference based on what I read in pool school, but if I went with a sand filter, how big would I need to go? I'm looking at the Hayward pro-series top mount per his recommendation. Which one do I need for 38k gallons? I know this depends on flow rate and how quickly I want to turn over the water, so recommendations there would be great too!

    Sorry for all the questions. I'm just more apt to trust the experts here than a pool guy who may only be making recommendations based on lining his pockets.
    38,000 gallon IG pool Plaster bottom & fiberglass walls
    Jandy FloPro 1.5hp, 2-speed pump
    Hayward S310T2 sand filter
    CompuPool CPSC36 SWG

  7. Back To Top    #7
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Just bought a house with a pool - questions

    Sounds like what you have is a hybrid pool. Plaster on the bottom and fiberglass walls. There have been a few posted here.

    To drain or not to drain. It's hard for us to say one way or the other. My initial thought is not to drain but I'm not seeing what he's seeing.

    I'd stick with either a 1 hp 2-speed or a 1½ hp 2-speed pump. That should be plenty big for your pool.

    A sand filter for that size pool needs to be pretty large. The S310T2 or the S360T2 would be a good match for that pool and pump. If you want a cartridge filter look for something in the 500 sqft range.
    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

  8. Back To Top    #8

    Join Date
    Jun 2012
    Location
    Louisville, KY
    Posts
    50

    Re: Just bought a house with a pool - questions

    Quote Originally Posted by Bama Rambler
    Sounds like what you have is a hybrid pool. Plaster on the bottom and fiberglass walls. There have been a few posted here.

    To drain or not to drain. It's hard for us to say one way or the other. My initial thought is not to drain but I'm not seeing what he's seeing.

    I'd stick with either a 1 hp 2-speed or a 1½ hp 2-speed pump. That should be plenty big for your pool.

    A sand filter for that size pool needs to be pretty large. The S310T2 or the S360T2 would be a good match for that pool and pump. If you want a cartridge filter look for something in the 500 sqft range.
    Thank you for the quick response!
    38,000 gallon IG pool Plaster bottom & fiberglass walls
    Jandy FloPro 1.5hp, 2-speed pump
    Hayward S310T2 sand filter
    CompuPool CPSC36 SWG

  9. Back To Top    #9
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Just bought a house with a pool - questions

    I am sure a 2HP pump would work just fine, and as a pool guy I can see why he suggested it, it will also likely be overkill and will cost more in electricity to run than a 1.5HP, and again as a pool guy I can see why he would suggest a sand filter, they are simple low maintenance, and in general work, they also waste the most water backwashing (important if you live somewhere with high water rates, or possible water use restrictions) and provide the lowest level of particle filteration, perhaps an issue if you get ultrafine dust blown into your pool, this is a problem is some regions more than others. Like you said though it is a personal choice and you know best how much effort you want to put into your filtration.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

Posting Permissions

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