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Thread: Triton II TR-100 Sand Filter High Pressure

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    Triton II TR-100 Sand Filter High Pressure

    Am in the process of replacing my pump and was talking to the local Leslie's manager in regard to my Pentair Triton II TR-100 Sand Filter. I'm having trouble keeping the pressure down after backflushing. Can get it down to 18 psi or so, but runs back up to mid-twenties real quickly, like one day, then gets to 30 psi or so. He says this is way too high and I should change the sand in the filter. Just bought the house so don't know when last done. Does this sound right?

    Then, the label on the filter says 450lbs sand media. Could this be right? 9 bags of sand? It's fine if it is, but seems like a lot.

    Thanks in advance for any thoughts

    Luther
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    linen's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    Does you gauge go to 0 psi when the pump is off?

    Most often and presure rise is indicating the filter is working and removing stuff from the water. When it goes up that high, do you backwash and is the backwash water dirty at first?

    There are very few instances where the sand needs to be replaced. It does not "wear out".
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Triton II TR-100 Sand Filter High Pressure

    Yes, does go to zero and backflush water is dirty, just runs back to higher pressure really quickly. I've been told the sand loses it's abrasive edges after some time.
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    Mod Squad Bama Rambler's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    Think about this. If the sand wore out by water running over it then there'd be nothing but dust on all the beaches of the world. And the ocean is a lot tougher on the sand than a sand filter could ever be. It just doesn't wear out like that.

    From you're description, I'd say your sand is working really well!

    What does your water look like?
    Do you have a good test kit?
    Can you post a full set of test results?
    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

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    Mod Squad JohnT's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    How long do you backwash?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    asxetos's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    Sand could be (partly) calcified.

    Before replacing, should be checked by hand.
    Don´t be fooled by the sheep on my bike, I swim with fish in my sound equipped pool.

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    Re: Triton II TR-100 Sand Filter High Pressure

    Backflush takes a few minutes, I do it the same as my local pool guy showed me. Then there is a setting for rinse, which I do after the backflush.

    That's funny, probably true about the ocean and sand, does make one think. The Leslie's guy says is dangerous to run above 20's, sounds like he's trying to sell filters.

    I'll just keep backflushing I guess. First up is the new VS Pump to keep the local utility out of my wallet in such a big way.
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    linen's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    You didn't answer Bama's question on what your water looks like or the question on test results.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Triton II TR-100 Sand Filter High Pressure

    Water is clear, using test strips, all good except for very high total alkalinity, will put up numbers this afternoon. I am having some issues with yellow algae and spots of black algae where water doesn't seem to flow as well, i.e., sit step in corner of pool, and net tie thingies underwater. Have recently put in black algae treatment after metal brushing algae areas.
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    Mod Squad Bama Rambler's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    You have algae and your filter pressure is rising. Completely what should be happening.

    Get yourself a good test kit and SLAM your pool until you have passed the OCLT and then your filter pressure will react normally.
    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

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    Re: Triton II TR-100 Sand Filter High Pressure

    Yep, you need to kill off that algae bloom, and then your filter will stop getting filled up with algae. Don't even think about the sand right now.
    Maryland
    18000 gallon plaster pool, Pentair Triton II sand filter, Purex Triton Minimax Plus 300 gas heater, 1.0 HP two-speed Pentair Superflo, Polaris 380
    Caldera Marino hot tub, 360 gallon

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    Re: Triton II TR-100 Sand Filter High Pressure

    Sorry for slow response if anybody still reading this thread, too many jobs...
    Using a test strip kit, I get:
    Total Chlorine 2
    Free Chlorine 1
    PH 8.4
    Total Alkalinity 240
    Cyanic Acid 100

    I'm aware the PH is high, has been ongoing, seems like it'll eat as much Muriatic Acid as I'll give it. I'll add more in the morning, and add some more chlorine, I run 2 floaters in the pool, generally 4-5 tabs going at any time and use 1 pouch of shock each Saturday for some reason. My goal is to get mwater healthy and my total chemical usage down to reasonable. So far not so bad except for acid.

    Tx, Luther
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    Re: Triton II TR-100 Sand Filter High Pressure

    Thanks all for the recent responses, I just saw them as I posted the chemical analysis. I'm heading to the pool school forum to look up SLAM and how to get a good test kit. I obviously have algae, just realized that high alkilinity would lead to high algae, geez. I'll start reading now and will follow up here as I try to get it right. I'll be busy with this and the new Pentair Intelliflo that's on it's way to replace my POS Sta-Rite. Gotta do it, wife's sister now has a 100 person birthday party planned for my back yard and I'll be a dead man if I have issues with the pool.
    Thanks again all, obviously I have a lot to get figured out. I'll post as I go along.
    Luther
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    Re: Triton II TR-100 Sand Filter High Pressure

    Is the Taylor K-2006 FAS-DPD test kit reasonable?, about to order
    20' x 50', 3.5'-6' depth gunite pool. ~35,000 gal. Sta-Rite Max E-Pro 1.5hp pump and PB-4 3/4 booster pump for Polaris 280 sweep. Triton II sand filter. 12 panel passive solar heating system on own structure 2'-5' high adjacent to pool equipment. Also cursed with PG&E power on tiered rate system, i.e., .32/kwh(ouch!)

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    linen's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    Yes, but many of us get the tf-100, it is the best value, and Dave (username duraleigh) has fast shipping.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Mod Squad Bama Rambler's Avatar
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    Re: Triton II TR-100 Sand Filter High Pressure

    Quote Originally Posted by LutherKrank
    I obviously have algae, just realized that high alkalinity would lead to high algae, geez.
    Sorry, but high alkalinity has nothing to do with algae! It'll make your pH rise quickly, and it contributes to scaling, but it has nothing to do with algae.

    Low chlorine levels is the reason for the algae. a good test kit is an vital tool in keeping the water balanced.
    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

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