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Thread: Anyone used a Dosatron?

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    Anyone used a Dosatron?

    In my quest to building a automated chlorinator I came across a family member that has a Dosatron D14mz10. I know nothing about this and not even sure if it would work. Anyone familiar with such a pump? It is adjustable and the rate is based on the amount of water pressure running thru the system, so I could possibly install an adjustable flow valve just before the pump... Here is a link to the manual.... http://dosatronusa.dosatroninternat....US-Manual3.pdf Any advice would be appreciated.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    JoyfulNoise's Avatar
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    Re: Anyone used a Dosatron?

    It's basically a metering pump that mixes input water and a chemical to get dosed output water. It would be setup very similarly to how people use Stenner peristaltic pumps here on the forum and might even be a bit better. You'd have to play guinea pig for us and tell us how it goes. Steiner pumps inject full-strength chlorinating liquid. This pump would be able to mix inlet pool water with chlorinating liquid to deliver a less concentrated dose. It might be better in the sense that your downstream components would see a less harsh chemical dose BUT you'd have to run this type of pump a lot longer than a Stenner pump. So there would be trade-offs here for pool pump run time (and Stenner runtime) versus downstream equipment damage. Looks interesting though...
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Anyone used a Dosatron?

    I think I will give it a shot. Not sure how to run all the plumbing at this point. My pump currently runs 24/7 so that means the Dosatron would run 24/7 as I would not have a way to turn it on and off. Thats the only negative I see. If I ever decide to pump the pool pump on a timer then I could adjust for a greater flow rate. Not sure how to manage the amount of chlorine either since the outcome would be diluted.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    JoyfulNoise's Avatar
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    Re: Anyone used a Dosatron?

    Running a pool pump 24/7 is, in almost all cases, totally unnecessary and, worst of all with a single-speed pump, a complete waste of money. You might be interested to read this article in Pool School - Pool School - Determine Pump Run Time Honestly speaking, if I had to choose between a Dose-a-tron pump and a pool timer, adding a pool timer would be a much higher priority.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Anyone used a Dosatron?

    I used a donation in the growing industry for fertilizer or pesticide application. Typically there set up for high pressure but I'm sure there's a way to convert or there may be a lower pressure model.
    16'x34' Kidney 17000 Gallon IG Vinyl liner. Pentair IntelliXF vs pump, Sta-Rite System 3 DE filter. Liquidator, TF-100 Test kit w/ speed stir. Aqua Comfort heat pump, Dolphin Apollo robot, clear solar cover, stamped concrete deck.

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    Re: Anyone used a Dosatron?

    We purchased the house about 6 months ago. It appears the pool has never had a timer installed. It something that I want to add but have been told its not a bad thing to run the pump 24/7. I will look in to the timers. The Dosatron will be free, thats why I was thinking about giving it a go. Will have to do some testing to be sure it will work.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Mod Squad tim5055's Avatar
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    Re: Anyone used a Dosatron?

    Quote Originally Posted by joshua5438 View Post
    We purchased the house about 6 months ago. It appears the pool has never had a timer installed. It something that I want to add but have been told its not a bad thing to run the pump 24/7. I will look in to the timers. The Dosatron will be free, thats why I was thinking about giving it a go. Will have to do some testing to be sure it will work.
    While pool pumps may be reated for 24/7 operation the big issue is cost. Unless you have a two speed or variable speed pump you are wasting a lot of electricity running that long. Right now I only run mine about 4 hours a day and at the height of the season it will reach about 6 hours.

    Depending on electric rates in your area a timer can pay for itself quickly.

    Free is hard to beat, so not a lot to loose by trying it. The only down side i see looking through the manual is that they state " It is the responsibility of the owner/operator to replace the injection seals annually to ensure precise injection". While a Stenner recommends replacing the pump tube yearly, this will involve tearing down the unit to rebuild it. Not the end of the world, but many who have minimal mechanical skills may have issues.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Anyone used a Dosatron?

    We recently bought a house with a pool that didn't have a timer on the pump either. I had never heard of that before. The previous owner was told by the builder that it was best to just leave it running all the time. My only thought was that they wanted to be able to sell him a new pump when his went out prematurely.

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    Re: Anyone used a Dosatron?

    Would this be a good timer to purchase? Intermatic Electronic Timer, 7 Days, SPST ET1725C | Zoro.com I would like to be able to run the pump and possibly a stenner pump with the dosatron doesnt work out. My pool is wired for 220V
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: Anyone used a Dosatron?

    Here is another that I have found. What are your thoughts? Aube by Honeywell TI040/U 7-Day Programmable Timer - Wall Timer Switches - Amazon.com
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Re: Anyone used a Dosatron?

    Is it possible to attach the pool pump and stenner pump to the T104 timer?
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: Anyone used a Dosatron?

    Absolutely yes
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Mod Squad tim5055's Avatar
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    Re: Anyone used a Dosatron?

    Quote Originally Posted by joshua5438 View Post
    Is it possible to attach the pool pump and stenner pump to the T104 timer?
    Yes, here is how I did it - My Stenner Install - July 2014
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Anyone used a Dosatron?

    Thanks! That may be the way I go then. I wasnt sure if the Stenner was 110 or 220. I see that you have the adjustable pump. If I purchased the non adjustable then I assume I would have to purchase another timer to go between the pool pump timer and the stenner pump? Trying to figure out how to regulate the chlorine if both pumps work off the same timer.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: Anyone used a Dosatron?

    Quote Originally Posted by joshua5438 View Post
    Thanks! That may be the way I go then. I wasnt sure if the Stenner was 110 or 220. I see that you have the adjustable pump. If I purchased the non adjustable then I assume I would have to purchase another timer to go between the pool pump timer and the stenner pump? Trying to figure out how to regulate the chlorine if both pumps work off the same timer.
    Indeed, some folks address the issue of having their Stenner and filter pumps "tethered" in run time by getting the variable speed Stenner--to be able to adjust FC dosing to pump runtimes. I personally find it more flexible to have the Stenner and filter pump on separate timers. Based on another member's idea, I snagged one of the Woods WiOn WiFi outdoor timers. It can be easily programmed/reprogrammed from your phone. It has worked flawlessly for me thus far and has proven very useful on a couple of occasions already. One needs to be mindful of selecting run times for the Stenner that match the filter pump run times. From what others have reported, the single speed pump also seems less prone to problems that are introduced by the ratcheting mechanism of the variable speed Stenner.
    Jay--Metro NYC
    35K gal, in-ground, free-form, pebble finish, 2 skimmers, 3 returns, autofill. No spa, no features. Partial shade.
    Pentair C&C cartridge filter (400 sq in), Pentair VS pump, Pentair 140 btu heat pump, Triton Plus Robo-cleaner; Stenner with 55 gal bleach cistern. TFT 100 test kit.

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    Re: Anyone used a Dosatron?

    Quote Originally Posted by JayG View Post
    Indeed, some folks address the issue of having their Stenner and filter pumps "tethered" in run time by getting the variable speed Stenner--to be able to adjust FC dosing to pump runtimes. I personally find it more flexible to have the Stenner and filter pump on separate timers. Based on another member's idea, I snagged one of the Woods WiOn WiFi outdoor timers. It can be easily programmed/reprogrammed from your phone. It has worked flawlessly for me thus far and has proven very useful on a couple of occasions already. One needs to be mindful of selecting run times for the Stenner that match the filter pump run times. From what others have reported, the single speed pump also seems less prone to problems that are introduced by the ratcheting mechanism of the variable speed Stenner.
    dang, I just bought a woods outdoor timer that isn't wifi. Hadn't ever heard of the WiOn. Unfortunately my amazon order already shipped. Maybe I'll return it.

    17,500 gallon IG Vinyl
    Pentair Tagelus TA60D Sand filter
    Pentair Challenger 1.5HP pump CFII N1 1.5A
    Taylor K-2006-A, Stenner 45MPHP10 auto chlorine feed

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    needsajet's Avatar
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    Re: Anyone used a Dosatron?

    I was thinking about Dosatron as well for adding acid, mostly just because I'm familiar with them from nursery production. As a fertilizer injector, they're good at maintaining a consistent dilution rate (e.g. 1:200) so that a gallon of concentrate is injected for every 200 gallons of water that goes through the injector. So regardless of which irrigation valves are open, the fertilizer is the same strength, provided you stay within the operating range of the injector. A common layout in a nursery is to have one or more large fertilizer injectors for overall needs (100+ GPM, 60-120 PSI), and use Dosatrons for localized applications (e.g. under 30 GPM, under 80 PSI, or something that's different from what most of the crops need)

    A small Dosatron such as shown in your link handles up to 14 gallons per minute vs. 50 GPM flow for my small pool. Brand new, they cost more than a Stenner, but if it's free, I think you could make it work on a parallel 3/4" line by throttling the flow on the main return line to push water through the parallel line and overcome the friction loss in the Dosatron. Dosatron also makes a venturi style that is around the same price as a Stenner, and larger fertilizer injectors priced in the $000s.

    The Stenner meters a consistent amount over time, without regard to the amount of water flowing through the pool piping. I'm guessing this might be easier to manage, but you could manage the Dosatron by monitoring consumption of bleach or acid and dial it in accordingly. If you do try it out, I'm certainly interested to learn how it goes. I have a way to get a free one too
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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    Re: Anyone used a Dosatron?

    Quote Originally Posted by camueller View Post
    dang, I just bought a woods outdoor timer that isn't wifi. Hadn't ever heard of the WiOn. Unfortunately my amazon order already shipped. Maybe I'll return it.
    I'd either return it or repurpose it to outdoor lighting or something. This is the guy I was talking about:

    http://www.amazon.com/50049-Outdoor-.../dp/B00ZYLQZEK

    The interface is basic but functional, but very easy to program and/or reprogram when dialing in things like I'm doing now. Good luck!

    Jay
    Jay--Metro NYC
    35K gal, in-ground, free-form, pebble finish, 2 skimmers, 3 returns, autofill. No spa, no features. Partial shade.
    Pentair C&C cartridge filter (400 sq in), Pentair VS pump, Pentair 140 btu heat pump, Triton Plus Robo-cleaner; Stenner with 55 gal bleach cistern. TFT 100 test kit.

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    Re: Anyone used a Dosatron?

    Quote Originally Posted by JayG View Post
    I'd either return it or repurpose it to outdoor lighting or something. This is the guy I was talking about:

    http://www.amazon.com/50049-Outdoor-.../dp/B00ZYLQZEK

    The interface is basic but functional, but very easy to program and/or reprogram when dialing in things like I'm doing now. Good luck!

    Jay
    you talked me into it. I haven't set my final pool pump run time schedule yet, but I hope to run it in 3 couple of hour periods throughout the day. And on top of that, I want to add chlorine via my stenner pump in each of those run cycles. I wasn't looking forward to setting up 3 different on/off periods for the stenner pump via the button interface on the non wifi model. So I went ahead and ordered the wifi model, and I'll return the other most likely.

    17,500 gallon IG Vinyl
    Pentair Tagelus TA60D Sand filter
    Pentair Challenger 1.5HP pump CFII N1 1.5A
    Taylor K-2006-A, Stenner 45MPHP10 auto chlorine feed

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