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  1. #1
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Cleaning drum screen

    Morning all,
    This has been talked about before but I have never done it.
    My screen could do with a good clean up,so I have white vinegar but how do you do it?
    Do I just brush the vinegar on neat with a brush leave a bit then hose off?
    I am sure some of the vinegar would get in the water would that harm the koi?


    John

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    Senior Member Rank = Nanasai rolo's Avatar
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    watched a guy on youtube the other day use lemon juice.

    keith

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    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
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    Hi John.

    I use a nail brush to clean my drum. I find it has the best stiffness to the bristles without it damaging the mesh. Plus its small enough to manoeuvre inside the drum.

    I've used drum screen cleaner before, but will probably just use white vinegar when it runs out. But the method 'd use would be the same.

    I pour a small amount into a bowl, dip the brush into that then, turn the drum off and gently scrub the drum. I then leave it for 10mins or so to let the acid do it's thing. I then manually rotate the drum and do the other side. Just don't forget to drop the motor down back into position and turn it back on again when finished.

    I also use the brush and cleaner/vinegar on my sieve on my QT. It works a treat as otherwise it blocks up with biofilm.

    A little bit of vinegar going into the pond won't hurt. But if you are worried, you can always add some bicarb to the water afterwards to help buffer any of the acid that does go in.

    Sent from my Pixel 8 using Tapatalk
    Last edited by Twhitenosugar; 05-02-2024 at 11:52 AM.
    13,000L fibreglassed raised pond with window

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  6. #4
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Thanks for that will have a go tomorrow bit busy today.
    John

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    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    white vinegar will work, but I prefer to make a 5% solution of citric acid crystals in a spray bottle as the ph is slightly lower.

    i spray the drum agitate gentley with a 2" clean paint brush.
    leave it for 5-10 mins then rotate the drum a quarter turn and do it again.
    brings the screen up like new and has very little effect on ph, a very small temporary drop of about 0.02.

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  10. #6
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Did my screen this morning and easier than I thought,came up great with white vinegar rubbed with a new paint brush then hosed off.

    Come spring I will empty the drum and flush it out well ready for summer.

    Thanks for all your advice lads.
    John

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  12. #7
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by john1 View Post
    Did my screen this morning and easier than I thought,came up great with white vinegar rubbed with a new paint brush then hosed off.

    Come spring I will empty the drum and flush it out well ready for summer.

    Thanks for all your advice lads.
    i do mine pretty regular now, i've found the drum washes less often, and the water moves through the screen easier with less of a drop from the dirty side.
    due to the removal of scale and biofilm.
    Last edited by davethefish1; 07-02-2024 at 10:20 AM.

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    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    I just use a jet wash, 2 or 3 times a year. Comes up like new every time.

    For a deeper clean to remove limescale from the pores I mix bicarb into a paste and brush it into the drum mesh that's above water, turn the pump right down to increase the length between drum cleans, leave it sitting there a couple of hours until the drum next spins, then do the other half, then after the next spin I jetwash the whole thing. I only do this once every couple of years, but probably not needed for you John due to your super soft water.

    I've previously wondered if I could use Astonish Limescale remover, it is citric acid based, and does an amazing job of my kettle, and looking at the data sheet I can't see any major red flags considering the tiny amount that would be needed:

    https://healthandhygieneproducts.com...p_LOLS.pdf.pdf
    Last edited by RS2OOO; 15-02-2024 at 05:19 PM.

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  16. #9
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Ha ha, yes Steve I have super soft water.

    But i was a bit concerned useing the white vinegar but a lot easier than i thought.
    I thought maybe jet washing was a bit harsh as in damaging the mesh but apparently not.

    Hope your well Steve,all good here.
    John

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  18. #10
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Quote Originally Posted by john1 View Post
    Ha ha, yes Steve I have super soft water.

    But i was a bit concerned useing the white vinegar but a lot easier than i thought.
    I thought maybe jet washing was a bit harsh as in damaging the mesh but apparently not.

    Hope your well Steve,all good here.
    All good here as well thanks John.

    Koi are doing ok, but haven't really lost much weight (fat females) despite the last month of fasting with just 1 feed per week.

    Have just had 3.5 tonne of materials delivered to build a new retaining wall for the backfill that supports the single skinned portion of my pond. It is a job I'm really not looking forward to, especially as I want to do it without having to drain the pond so need to hope the existing backfill remains stable while I demolish the bent retaining wall. Will post up pics on my build thread shortly.

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  20. #11
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Quote Originally Posted by RS2OOO View Post
    All good here as well thanks John.

    Koi are doing ok, but haven't really lost much weight (fat females) despite the last month of fasting with just 1 feed per week.

    Have just had 3.5 tonne of materials delivered to build a new retaining wall for the backfill that supports the single skinned portion of my pond. It is a job I'm really not looking forward to, especially as I want to do it without having to drain the pond so need to hope the existing backfill remains stable while I demolish the bent retaining wall. Will post up pics on my build thread shortly.

    Big job that mate,put some photos up so we can see what your doing.
    Would give you a hand of I was nearer to you.

    I have to dig up my lawn and lay some artificial grass which is rolled up in the garage.
    Waiting for some drier weather first.
    John

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    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by john1 View Post
    Big job that mate,put some photos up so we can see what your doing.
    Would give you a hand of I was nearer to you.

    I have to dig up my lawn and lay some artificial grass which is rolled up in the garage.
    Waiting for some drier weather first.
    Remember to sand over the top and adding a earth rod ain't a bad shout . Heard a few stories of static build up and experienced it our selves aswell . Gets bloody hot in the summer !

    Sent from my SM-S918B using Tapatalk
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    "we are water keepers first"

    Johnathan

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  24. #13
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Quote Originally Posted by Ajm View Post
    Remember to sand over the top and adding a earth rod ain't a bad shout . Heard a few stories of static build up and experienced it our selves aswell . Gets bloody hot in the summer !

    Sent from my SM-S918B using Tapatalk
    Will be sanding over Johnathan,how do you do an earth rod havnt heard of that?
    Allready done the front a few yrs ago and loads of passers by admire it.
    Dont mind the crusher bit but hate the digging up of the turf.
    John

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    Senior Member Rank = Sansai EME101's Avatar
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    Supplementary question if I may invade.

    I see the value of regular cleaning of the drum mesh but have assumed that vinegar or citrus or any cleaning agent would actually harm the bacteria in the biological bed after the drum ( I have a drum/bio unit )?

    Am I missing something or other what am I missing this time ? !

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    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Quote Originally Posted by EME101 View Post
    Supplementary question if I may invade.

    I see the value of regular cleaning of the drum mesh but have assumed that vinegar or citrus or any cleaning agent would actually harm the bacteria in the biological bed after the drum ( I have a drum/bio unit )?

    Am I missing something or other what am I missing this time ? !
    See what you are asking and I said the same in my opening thread but with no direct answer.
    That is why I would have thought you need to be very carefull not to let any cleaner get in the pond.

    Ideally you would remove the screen and clean away from the filter.
    John

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    Senior Member Rank = Sansai EME101's Avatar
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    Hi John

    suspect I was being no more than a smartarse in focusing on my smaller volume biofilter .. In my case I might as well change the whole screen then as Id be bound to leave some remaining nasty stuff plus Im lazy.

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  32. #17
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by RS2OOO View Post
    I just use a jet wash, 2 or 3 times a year. Comes up like new every time.

    For a deeper clean to remove limescale from the pores I mix bicarb into a paste and brush it into the drum mesh that's above water, turn the pump right down to increase the length between drum cleans, leave it sitting there a couple of hours until the drum next spins, then do the other half, then after the next spin I jetwash the whole thing. I only do this once every couple of years, but probably not needed for you John due to your super soft water.

    I've previously wondered if I could use Astonish Limescale remover, it is citric acid based, and does an amazing job of my kettle, and looking at the data sheet I can't see any major red flags considering the tiny amount that would be needed:

    https://healthandhygieneproducts.com...p_LOLS.pdf.pdf
    how much do they charge for that?
    i use citric acid to clean my screen but the food grade chemical from amazon about 10 for 2kgs.
    reckon i could make up about 10 litres with that...
    https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

    use it to clean limescale off everything, drum, pumps, kettle, bathroom, shower...

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  34. #18
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by EME101 View Post
    Supplementary question if I may invade.

    I see the value of regular cleaning of the drum mesh but have assumed that vinegar or citrus or any cleaning agent would actually harm the bacteria in the biological bed after the drum ( I have a drum/bio unit )?

    Am I missing something or other what am I missing this time ? !
    once diluted in the drum and bio water 200-500 liters a few squirts of dissolved citric acid make very little difference to ph.
    after doing my whole drum and using about 200ml my ph goes down from 7.22 to 7.21 for about 15 minutes then back up to 7.22

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  36. #19
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Quote Originally Posted by EME101 View Post
    Hi John

    suspect I was being no more than a smartarse in focusing on my smaller volume biofilter .. In my case I might as well change the whole screen then as Id be bound to leave some remaining nasty stuff plus Im lazy.

    No EME , not a smartarse at all, we all have our thoughts be it right or wrong that is why we are here to try and help each other in keeping our koi safe and well.

    So voice your opinion be it right or wrong as none of us really know the answer
    John

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