Skip to main content
Home Off Topic

Anyone know anything about pool plumbing?

King_MeKing_Me Senior MemberDelray Beach, FLPosts: 7,094 Admiral
Our spa is dumping into the pool when the pump goes off.  Really didn't think a lot about until I had to fill the pool with water every other day.  When spa water is dumped in pool it causes the water level to go past water drain and out goes the water,

I'm assuming it is a check valve.  I see two installed.  Unfortunately there's no way to fix either one.  I already got a replacement one that can be maintained if something goes wrong.

My questions:  Why is there two check valves?  Thinking previous owner didn't want to cut out old one so just installed a 2nd one.

Here is a picture of the two.  The top(brown colored) is much smaller in length than new one, I have no room to install new one there so going to replace bottom one with the new one.  Is there any reason why it would be partially installed underground?  Does it need to be lower than the other plumbing for a reason?

And what's the canister looking device with electric feed to it?  Some kind of blower?  Not even sure it works.


Replies

  • plowboyplowboy Anywhere I choosePosts: 73 Deckhand
    The canister is your blower motor for your spa.  The 2 check valves in series makes no sense. If they go to your spa, then one or both has failed. 
  • dave44dave44 Senior Member Chesterfield, Va.Posts: 18,780 AG
    edited April 2020 #3
    Looks like an old one failed so someone installed another one without taking the old one out? And that one failed? 

        Not my field though.
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    plowboy said:
    The canister is your blower motor for your spa.  The 2 check valves in series makes no sense. If they go to your spa, then one or both has failed. 
    Thanks plowboy.  I plan on replacing the lower one tomorrow.  If I remove the upper one its going to be a huge plumbing deal and would I have to replace a couple valves while doing it.  I see flow going thru it so I'm assuming they just added a additional one rather than dealing with huge issue of replacing it.  This is what the new one looks like.  The flapper can be replaced if it fails rather than cutting our the entire thing.


  • plowboyplowboy Anywhere I choosePosts: 73 Deckhand
    That should fix it up
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    What exactly does the blower do?  Is it for bubbles in the spa?  If it is, it don't work.
  • dave44dave44 Senior Member Chesterfield, Va.Posts: 18,780 AG
    King_Me said:
    What exactly does the blower do?  Is it for bubbles in the spa?  If it is, it don't work.
    Yes. Where’s the switch?
  • plowboyplowboy Anywhere I choosePosts: 73 Deckhand
    dave44 said:
    King_Me said:
    What exactly does the blower do?  Is it for bubbles in the spa?  If it is, it don't work.
    Yes. Where’s the switch?
    Usually a conical shaped rubber button at the spa edge on older ones. Newer ones with the fancy computer boxes are controlled at the fancy computer box or remote 
  • dave44dave44 Senior Member Chesterfield, Va.Posts: 18,780 AG
    And some have timers elsewhere?
  • plowboyplowboy Anywhere I choosePosts: 73 Deckhand
    Likely. Its not on a timer, but on demand. 
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    I don't know where the switch is located.  I didn't even know what it was for....lol  The system is about 20 years old, I bought the house about 18 months ago.  I'll open it up and check for power and try to locate a switch.  I'm sure it doesn't work like everything else that came with pool.  All the components are almost all replaced - pump motor, filter cartridge container and lid, salt generator along with meter and just had it relined with glass tile.  Glad our dogs use as we don't.  This is it.  Dogs couldn't wait until it was full -

  • dave44dave44 Senior Member Chesterfield, Va.Posts: 18,780 AG
    I figured it was older, it looks great.
     Look on the side of the house closer to it. Is it heated?
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    No heat.  I found the switch to the light in the pool.  Just one switch and all it does is turn on the light.
  • dave44dave44 Senior Member Chesterfield, Va.Posts: 18,780 AG
    edited May 2020 #14
    Love those dogs!
      If you have a blower you have a switch to turn it on. It’s not something that just runs, look around on walls, fence, a post. Usually code would dictate around 40 inches off the ground and not near the water, but I can’t remember how far that was, 8 ft?
       And look in the panel box, probably a gfci breaker.
    ( although we have a light switch and outlet about 30 inches above the ground, maybe 12 ft from the pool)
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    OK, got the new check valve installed, turn the system back on, spa fills up with water, turn system off and spa still dumps into pool.  Played with the diverter valves and found when I close the return valve for the spa it retains the water.  Makes sense but shouldn't there be a check valve for the return???  I'm just leaving it off for now.
  • mrthornmrthorn SomewherrPosts: 4 Greenhorn
    Put a check valve on the return side 
  • Soda PopinskiSoda Popinski Senior Member GrovelandPosts: 16,680 AG
    After owning a pool for 16 years i've learned that i wish i didn't own a pool.   They're like boats, only you can't park them and forget about them for 6 months. 
    You can't pet a dead dog back to life 
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    mrthorn said:
    Put a check valve on the return side 
    Yes, that is probably what needs to be done to fix it.  What I can't understand is the system is 20 years old and appears to be professional installed, how could they not address it??  I bought the house about 18 months ago.
  • mrthornmrthorn SomewherrPosts: 4 Greenhorn
    There’s probably was a check valve on the return side, but it failed and they just got rid of it and shut the return off if they weren’t using it. 
  • Bimini_TwistedBimini_Twisted TampaPosts: 7,302 Admiral
    mrthorn said:
    There’s probably was a check valve on the return side, but it failed and they just got rid of it and shut the return off if they weren’t using it. 
    Tried to come back too soon I guess.
  • gingerbreadmangingerbreadman RvillePosts: 1 Greenhorn
  • King_MeKing_Me Senior Member Delray Beach, FLPosts: 7,094 Admiral
    Fixed yet?
    Yes, I took a bunch pictures and brought them to my local pool supply store.  Explained to them when the Spa drain diverter valve is closed it retains the water when pump goes off, he said that is the correct position, the diverter is only opened when the spa is to be emptied.

    I thought it had to be open to have the water circulate, I guess I was wrong.  With the water going into pool and going out from waterfall to pool is enough circulation.

    I guess its fixed!  I finally figured out what all the diverter are and their purpose.  Only took 18 months to figure it out....lol
  • Soda PopinskiSoda Popinski Senior Member GrovelandPosts: 16,680 AG
    good deal now you know!  
    You can't pet a dead dog back to life 
Sign In or Register to comment.
Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

Preview This Month's Issue

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Florida Sportsman App

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Florida Sportsman stories delivered right to your inbox.

Advertisement

Phone Icon

Get Digital Access.

All Florida Sportsman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now