Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: My Pb 4 Polaris booster pump leaks.

  1. Back To Top    #1

    My Pb 4 Polaris booster pump leaks.

    I have a Polaris PB 4 booster pump, It has been leaking a little for some time so this winter I decided to put new seals in it, I installed the seal as I was shown on You tube video and put it all back together I started it up and no leaks so I shut it off. I didn't want to run it any longer because the back up unit on my sweep was broke in half and I had another one on order.
    When the back up unit arrived I installed it on the sweep and fired up the pump.
    Now the pump leaks like more than it did before. I thought that I was being real careful putting it back together but I must of done something wrong. I mean water is pouring out around the shaft right where the old leak was. Any ides as to what I might of done wrong.
    Intex 15'x42" Steele Frame pool with Intex CS8111 Sand filter and pump.

  2. Back To Top    #2

    In the Industry

    Join Date
    Jan 2011
    Posts
    153

    Re: My Pb 4 Polaris booster pump leaks.

    How old is your pump?? PB4 when they get old are know for the bracket to crack, turn the pump on and put you figures in the hole along the shaft to see where the water is exactly coming from. You could have damaged the seal during installation, did you check the impeller to make sure it wasn't melted?

  3. Back To Top    #3

    Re: My Pb 4 Polaris booster pump leaks.

    I looked everything over real good and didn't see anything wrong with the impeller or the housing, As far as sticking my finger in there to see where it is coming from that will need to wait it is freezing out there right now but I will do that in a couple of days when the weather is a little better.
    Intex 15'x42" Steele Frame pool with Intex CS8111 Sand filter and pump.

  4. Back To Top    #4

    In the Industry

    JoshU's Avatar
    Join Date
    May 2007
    Location
    New Orleans, LA
    Posts
    541

    Re: My Pb 4 Polaris booster pump leaks.

    As Kevin mentioned the plastic housing could be deformed from heat damage. Also seals are commonly installed backwards which would cause large amounts of water to leak out.
    Josh Ulfers - josh@saltpoolguys.com - 888-725-8766
    SaltPoolGuys.com - AutoPilot Pool Pilot Systems, Parts & Cells - AquaCal Heat Pumps

  5. Back To Top    #5

    Join Date
    Aug 2013
    Location
    Houston
    Posts
    44

    Re: My Pb 4 Polaris booster pump leaks.

    I picked up this thread as my PB4 is leaking. I checked various replacement parts and there are all kinds of kits available depending on what you want to replace as far as seals go. Is there a way to determine which seals you need based on where the leak is? I hate to buy random parts only to find out that I need something else. I think my pump, I 'm the second owner, is around 6-7 years old if this helps the diagnostic process.

    Update: After some more research, I believe the part I need is the mechanical (also called shaft seal?) seal. Is this the usual seal and the one you discussed in the original thread?
    1999 23,000 gal IG plaster w/spillover 1,600 gal spa natural stone waterfall & decking, 2 skimmers, 3 returns, Pentair Whisperflo 2 HP model WF-28, PB4 booster pump, Pentair FNS Plus Vertical Grid DE filter area 120 sq ft flow rate 96 rpm, Hayward pump for waterfall, Polaris 280, Aqualink RS8
    TF-100 + Speed Stir

Posting Permissions

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