Welcome to Koi Forum. Is this your first visit? Register
Results 1 to 17 of 17
  1. #1

    Life expectancy of a drum filter

    Guys I live in Thailand and use a draco drum filter (Solitaire 16 I think they call it), its been in service for nearly 2 years and during that time I have had to replace the drive motor once and the screen once……….it basically does a fantastic job of removing the worst of the solids (fish crap) before the water hits the bio filter and returns back into to pond.
    To buy a brand new one I think they are about 1700 quid plus shipping and a 20% import duty and 7% VAT. I don’t want to buy a replacement unit and keep it on a shelf for X amount of years but in the same breath I don’t want to not have a spare and when the drum completely gives up have to wait a month or so to get a replacement………………hence the question what the life expectancy of a drum unit?


    Sent from my iPad using Tapatalk



  2. Thanks john1 Thanked / Liked this Post
  3. #2
    Senior Member Rank = Nanasai Mike Bass's Avatar
    Join Date
    Feb 2019
    Location
    Long Eaton
    Posts
    597
    Thanks / Likes
    1108
    Quote Originally Posted by ndwgolf View Post
    Guys I live in Thailand and use a draco drum filter (Solitaire 16 I think they call it), its been in service for nearly 2 years and during that time I have had to replace the drive motor once and the screen once……….it basically does a fantastic job of removing the worst of the solids (fish crap) before the water hits the bio filter and returns back into to pond.
    To buy a brand new one I think they are about 1700 quid plus shipping and a 20% import duty and 7% VAT. I don’t want to buy a replacement unit and keep it on a shelf for X amount of years but in the same breath I don’t want to not have a spare and when the drum completely gives up have to wait a month or so to get a replacement………………hence the question what the life expectancy of a drum unit?


    Sent from my iPad using Tapatalk
    Do you have high heat & humidity , do you have a stable power supply at the required voltage/ wattage & is the filter unit out in the open exposed to the direct sun & weather.? These are the sort of things that will affect how long the parts of the electric motor and the mechanical parts will work for. Regular maintenance cleaning of the screen , lubricant on moving parts as well as the amount of debris the drum is being asked to clean will all affect its lifespan. Keeping good the waterproof seals around electrical panels and checking on drive motors , chains or drive belts will all help to extend its life which should be many years with luck
    Last edited by Mike Bass; 21-11-2021 at 09:49 AM.
    1kGal BD/Skim RDF/UV/k1 2.3kGal 2windows 2airBD/skim Sieve/Eazypod RDFcombi 3xVP/UV,ASHP

  4. Thanks Ajm, Maddog1, john1 Thanked / Liked this Post
  5. #3
    Senior Member Rank = Grand Champion RS2OOO's Avatar
    Join Date
    Feb 2018
    Location
    South East
    Posts
    4,578
    Thanks / Likes
    10451
    Can you avoid taxes and future costs by buying spare parts of all the moving parts and electrical boxes/circuits that could be affected by humidity/water long term?

    The actual unit itself should last forever.

    Sent from my Pixel 4a using Tapatalk

  6. Thanks Mike Bass, davethefish1, john1 Thanked / Liked this Post
  7. #4
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
    Join Date
    Aug 2013
    Location
    N.Wales.
    Posts
    7,012
    Thanks / Likes
    12726
    I use the Solum 25 and been good for 3 yrs only thing going wrong was the float switch which from Draco was £35, had to pay it as an emergency so got some spare ones from Ebay for buttons but all good now.

    Anything with moving parts can go wrong,so where do you start !!

    Surprised you had to replace the drive motor so soon and the screen !!!

    Mine all original,yes they work great Neil but you dont know what can go wrong next mate.

    To answer your question would think the drive motor is no 1,
    Then maybe bearings and electrics hard to say really but anything moving can wear out.

    Not very helpfull Neil sorry.
    John

  8. Thanks Mike Bass Thanked / Liked this Post
  9. #5
    Senior Member Rank = Nanasai GadgetBazza's Avatar
    Join Date
    Aug 2018
    Location
    Essex
    Posts
    638
    Thanks / Likes
    1245
    I have 3 Draco Solum 25's. Mechanically, I think you're probably only likely to need to replace a motor, it seems the direct gearing constructions should be good for a number of years. I can't see a reason why the bearings will wear excessively either, but I've only had mine running for a 12-18 months, so be interesting to see.

    As for electrics, the power supplies are the most vulnerably item to moisture due to their design. Fortunately, they are a stock electrical item (no need to buy it from Draco) and they are used everywhere. Cost about £20 to replace, I've already bought 3, 2 as replacements and 1 that I'm currently keeping as a spare.

  10. Thanks john1, RS2OOO Thanked / Liked this Post
  11. #6
    Moderator Rank = Supreme Champion Feline's Avatar
    Join Date
    Aug 2013
    Location
    Somerset
    Posts
    6,449
    Thanks / Likes
    5311
    If getting replacements/spares is tricky for you, I would seriously consider building redundancy into the system.
    For example, install 2 smaller drums working in parallel with a pump each, that way if and when one develops a fault you have another one that can keep things ticking over while you wait to replace the first. Alternatively keep in stock a spare of every vital complement- drum motor, screen, seal, spray pump if you’re using one.

  12. #7
    Senior Member Rank = Nanasai Mike Bass's Avatar
    Join Date
    Feb 2019
    Location
    Long Eaton
    Posts
    597
    Thanks / Likes
    1108
    Quote Originally Posted by Feline View Post
    If getting replacements/spares is tricky for you, I would seriously consider building redundancy into the system.
    For example, install 2 smaller drums working in parallel with a pump each, that way if and when one develops a fault you have another one that can keep things ticking over while you wait to replace the first. Alternatively keep in stock a spare of every vital complement- drum motor, screen, seal, spray pump if you’re using one.
    I agree with Feline as I have two Filtreau drums ( on two ponds though) and after 5 years use of one and about 8 months use of the second I have gone through two clean water pumps on the first pond ( that is exposed to the elements). The only other part needed so far was a replacement screen due to damage caused when slipping on the drum frame due to being insecure ( shortly after first use). Occasionally I have to tighten up to the correct torque, the direct drive nut securing the drive shaft, or clear out a spray nozzle. But on both ponds I have secondary filtration to the skimmer lines with sieves before the bio chambers, asa back up.
    1kGal BD/Skim RDF/UV/k1 2.3kGal 2windows 2airBD/skim Sieve/Eazypod RDFcombi 3xVP/UV,ASHP

  13. Thanks Djstiles999 Thanked / Liked this Post
  14. #8
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
    Join Date
    Aug 2013
    Location
    N.Wales.
    Posts
    7,012
    Thanks / Likes
    12726
    Quote Originally Posted by GadgetBazza View Post
    I have 3 Draco Solum 25's. Mechanically, I think you're probably only likely to need to replace a motor, it seems the direct gearing constructions should be good for a number of years. I can't see a reason why the bearings will wear excessively either, but I've only had mine running for a 12-18 months, so be interesting to see.

    As for electrics, the power supplies are the most vulnerably item to moisture due to their design. Fortunately, they are a stock electrical item (no need to buy it from Draco) and they are used everywhere. Cost about £20 to replace, I've already bought 3, 2 as replacements and 1 that I'm currently keeping as a spare.
    Bazza, would you have a link for the elecs for Draco ?

    Dont need one but handy to know as Draco would probably charge an arm and a leg.
    John

  15. Thanks RS2OOO Thanked / Liked this Post
  16. #9
    Senior Member Rank = Nanasai GadgetBazza's Avatar
    Join Date
    Aug 2018
    Location
    Essex
    Posts
    638
    Thanks / Likes
    1245
    Quote Originally Posted by john1 View Post
    Bazza, would you have a link for the elecs for Draco ?

    Dont need one but handy to know as Draco would probably charge an arm and a leg.
    Hi John,

    Sure, you can buy them from https://www.powersuppliesonline.co.u...er-supply.html

    This is an exact replacement unit, made by the same manufacturer and same part number.

    Cheers
    Barry

  17. Thanks RS2OOO, john1, Maddog1 Thanked / Liked this Post
  18. #10
    Extreme Koi Member Rank = Jussai NickK-UK's Avatar
    Join Date
    May 2015
    Posts
    1,108
    Thanks / Likes
    1247
    Quote Originally Posted by GadgetBazza View Post
    Hi John,

    Sure, you can buy them from https://www.powersuppliesonline.co.u...er-supply.html

    This is an exact replacement unit, made by the same manufacturer and same part number.

    Cheers
    Barry

    Meanwell LRS 150W 12V - that's the one

    Meanwell are a known PSU supplier.
    1700 litres on 50 watts
    Eco Pond 2.0: 13,000 litres, 58W airlifts, 1300l anoxic, Solum 16. No pump.

  19. #11
    Quote Originally Posted by Mike Bass View Post
    Do you have high heat & humidity , do you have a stable power supply at the required voltage/ wattage & is the filter unit out in the open exposed to the direct sun & weather.? These are the sort of things that will affect how long the parts of the electric motor and the mechanical parts will work for. Regular maintenance cleaning of the screen , lubricant on moving parts as well as the amount of debris the drum is being asked to clean will all affect its lifespan. Keeping good the waterproof seals around electrical panels and checking on drive motors , chains or drive belts will all help to extend its life which should be many years with luck
    Thailand is pretty much hot and humid all year around. The drum itself is covered by Perspex and the controller is also out of direct sun light. I’ve included a video of the filter system that I took about a year ago. Note I no longer use the sand filter. https://youtu.be/0Izt9NgeAfs


    Sent from my iPhone using Tapatalk

  20. #12
    Quote Originally Posted by RS2OOO View Post
    Can you avoid taxes and future costs by buying spare parts of all the moving parts and electrical boxes/circuits that could be affected by humidity/water long term?

    The actual unit itself should last forever.

    Sent from my Pixel 4a using Tapatalk
    I currently have these spare parts
    1 x circuit board
    1 x screen

    I think I will order a spare drum motor as I’ve already had one failure which was replaced under warranty which was great.


    Sent from my iPhone using Tapatalk

  21. #13
    Sorry for not replying sooner but for some reason I didn’t get any notifications of everyone’s replies
    Neil


    Sent from my iPhone using Tapatalk

  22. #14
    Quote Originally Posted by john1 View Post
    I use the Solum 25 and been good for 3 yrs only thing going wrong was the float switch which from Draco was £35, had to pay it as an emergency so got some spare ones from Ebay for buttons but all good now.

    Anything with moving parts can go wrong,so where do you start !!

    Surprised you had to replace the drive motor so soon and the screen !!!

    Mine all original,yes they work great Neil but you dont know what can go wrong next mate.

    To answer your question would think the drive motor is no 1,
    Then maybe bearings and electrics hard to say really but anything moving can wear out.

    Not very helpfull Neil sorry.
    The main reason I think the drum motor had an issue was because the 4 inch discharge line was not lined up correctly with the drum causing the drum to get into a bind. I’ve fixed that now and the drum turns easily now. Seriously this drum is so so good at removing the initial crap out of the bottom drain…….. I would be buggered without it.


    Sent from my iPhone using Tapatalk

  23. Thanks john1 Thanked / Liked this Post
  24. #15
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
    Join Date
    Aug 2013
    Location
    N.Wales.
    Posts
    7,012
    Thanks / Likes
    12726
    Quote Originally Posted by GadgetBazza View Post
    Hi John,

    Sure, you can buy them from https://www.powersuppliesonline.co.u...er-supply.html

    This is an exact replacement unit, made by the same manufacturer and same part number.

    Cheers
    Barry
    Thanks Barry will keep that link in case !!!!
    John

  25. Thanks Ajm Thanked / Liked this Post
  26. #16


    Gave the whole drum a good blast with my power washer and checked that the drum could turn easily ………. All good


    Sent from my iPhone using Tapatalk

  27. Thanks john1 Thanked / Liked this Post
  28. #17
    Extreme Koi Member Rank = Jussai NickK-UK's Avatar
    Join Date
    May 2015
    Posts
    1,108
    Thanks / Likes
    1247
    You may want something to block the sun and keep the drum in the shade to prevent bio/algae build up on the drum, unless you've also got the top on it?
    1700 litres on 50 watts
    Eco Pond 2.0: 13,000 litres, 58W airlifts, 1300l anoxic, Solum 16. No pump.

 

 

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT +1. The time now is 12:53 PM. Online Koi Mag Forum
Powered by vBulletin® Version 4.2.3
Copyright © 2021 vBulletin Solutions, Inc. All rights reserved.

vBulletin Improved By vBFoster® (Lite Version), © UltimateScheme, Ltd.