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Thread: Any ideas on how to improve the spill over from the spa?

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    Any ideas on how to improve the spill over from the spa?

    My spa spill over curls back under the spill way and against the wall above the pool instead of cleanly spilling into the pool.

    The spill way is travertine with a rounded bull nose and I was trying to figure out an easy fix to make the spill work better.

    Thanks.

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    BoDarville's Avatar
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    Re: Any ideas on how to improve the spill over from the spa?

    georgelearn:

    Welcome to TFP

    Let's begin with a few easy checks: When was the last time your filter was cleaned or backwashed? If you don't know or cannot remember, then I would clean/backwash the filter. After doing that, see if there is any difference in the water flow. Another item to check is the pump screen/filter located in the "wet" side of the filter. That screen needs to be cleaned out periodically. It should lift out of the pump so you can wash it out. Also check/clean the skimmer screens.

    If none of the above helps, you may need to provide us with a bit more information. Did this problem recently start or has it been going on for some time? Was the spa built the same time as the pool or was it recently added? Was the pump recently replaced or serviced?
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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    Re: Any ideas on how to improve the spill over from the spa?

    Not sure if this is advised for swimming pools, so I'd like an expert to review the idea.... at some of the national parks where they have caves they add a line of silicone caulk to the edge of the cave to force rainwater to drip off instead of curling around the edge and into the cave. Might work here?
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

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    Re: Any ideas on how to improve the spill over from the spa?

    Thanks.
    It's about 5-6 years old and has never cascaded well.

    Some of the water returns to the spa from the filter and some returns to the spa.

    If I have it all return to the spa the the cascade is strong and good, but I think the circulation might suffer.

    I like the idea of a silicone line or bead in order to break static,

    Take care.

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    thehowheels's Avatar
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    Re: Any ideas on how to improve the spill over from the spa?

    I saw this thread the other day, which piqued my curiosity since I had the same problem with my spillover. I have a great cascade when the booster pump is running, but with just the main pump, I get a small cascade on half of the spillover, and the rest dribbles down the wall.

    Well, I'm not going to go out and make any sort of recommendation to you, however today was the day I added borates to my pool. I added 25 lbs of boric acid. Within minutes of pouring it in, I noticed something surprising from my spillway. A full freaking cascade! What???



    Seeing is believing:



    Besides actually having a full cascade on the spillover, I've also noticed that it's quite a bit less turbulent, and thus less noisy. I don't know, maybe I'm just imagining things? Maybe it's the after-work beer? Or maybe just the SoCal sunset:



    Anyways. As for possible explanations? I've read others noticing a high lubricity of the water. It's possible that this is resulting in a slightly higher surface tension in the water, causing it to stay more uniform as it flows over the lip of the spillway. But what do I know? I'm a software engineer, not a physicist!
    Matt
    9k gallon, plaster, IG. Raised spa w/ spillover into pool. AO Smith Century Centurion / Purex Triton WisperFlo 0.5 HP, Hayward 1.5 HP (spa), Polaris 1-516-01 1.5 HP (blower). Hayward DE3620 36 ft2 72 GPM DE Filter, Polaris 145 cleaner. Pool built ~1980.
    Trouble-free, BBB since: April 25, 2013

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    Richard320's Avatar
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    Re: Any ideas on how to improve the spill over from the spa?

    I set my valves so no water returns to the filter from the spa and about 20% of the flow returns to the spa. It seems to mix well and keeps it flushed out. So...maybe you should make sure you aren't drawing any from the spa?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    thehowheels's Avatar
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    Re: Any ideas on how to improve the spill over from the spa?

    Just a small update...

    I saw that my spillway was performing great after I added the borates, however on the next pump cycle the water was dribbling down the wall again.

    I experimented a little by holding a chopstick up against the spillway, which resulted in a perfect cascade once again. So a trip to the hardware store, $3, and a tube of silicone caulk later, I had a nice bead of silicone across the lip of the spillway. 4 pump cycles later, the spillway performs beautifully every time!
    Matt
    9k gallon, plaster, IG. Raised spa w/ spillover into pool. AO Smith Century Centurion / Purex Triton WisperFlo 0.5 HP, Hayward 1.5 HP (spa), Polaris 1-516-01 1.5 HP (blower). Hayward DE3620 36 ft2 72 GPM DE Filter, Polaris 145 cleaner. Pool built ~1980.
    Trouble-free, BBB since: April 25, 2013

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