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 Post subject: Pond filtration?
PostPosted: Mon May 28, 2018 6:20 pm 
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I built a raised pond last year in my garden. It's a raised box with a waterfall in it basically.

I took the advice of some so called pond experts, and now I end up with a gunk pit every couple of months..

It's got a 4500lph pump with a 2 tiered strainer that goes up to the waterfall and out. Unfortunately it keeps getting a build up of algea and crap from the nearby greenery.

Can anyone make some suggestions on how to resolve this? If I put a pressured filter in, it'd have to sit below the level of the existing pump, so I don't think this pump would be suitable enough.Image

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 6:36 pm 
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Algae can be a major problem with ponds, I fitted an ultra violet light between the pump and filter a couple of years ago and it has been so much better.

https://www.allpondsolutions.co.uk/18w- ... gLSufD_BwE

picked and random from a google search. (I bought mine from "the range" reduced to clear as water damaged ) :lol:

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 6:47 pm 
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Attachment:
w1.jpg
w1.jpg [ 451.32 KiB | Viewed 677 times ]


Could you expand on what "The problem" is?

I can see the water is not clear, but then it wouldn't be if you have "bits" from the surrounding area falling in.
As wine~O points out, a UV will make the water clear - sort of. What it actually does is cause the micro organisms (They, that turn the water green) to clump together, (it also kills germs) the bits that clump together are then trapped in a biological filter. The filter has to be cleaned on an as and when basis.

You also miss the point of a pressurised filter. The idea is that as its pressurised it can sit above, the same level or even below the water level of the pond, and it will work. Some you MUST install below water level in the ground so that the soil supports them and stops them from bursting.

Two questions.

1) What is this two tiered strainer

2) Is there ANYTHING living in your water feature?.




P.S. My spell checker is not working.

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 10:03 pm 
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Sorry, forgot to list the actual issue.

So the 2 tier strainer is literally just a sieve. Nothing fancy other than plastic with 5mm holes in it.

It filters out all the leaves etc which is fine but they sit in the water and obviously just turn to sludge and algea. This algea then clings to the strainer and stops the pumps from pulling any water in.

Theres nothing living in there. We had contemplated putting some plants in there but it's not really big enough.

The pond is about half a meter deep and you can't see the bottom or the pump due to it being 'dirty'

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 10:32 pm 
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Welcome to the world of fountains, water features and ponds :wink:

You say the leaves etc just sit there and eventually turn to sludge, (sorry to state the obvious) that is because you are not clearing them out often enough.
Pond owners often clear their filters out 2-3 times / week, some even more AND they have to rinse the sponges out.
If it helps, most commercial fountains have filters, its just that like yours they are hidden from view and you just do not see them being cleaned.

Short of removing all the vegetation you have above, there is not much you can do (Even putting a mesh over the receiving tank will be of no use since that too will need cleaning.)

I can however suggest a way to keep the water 100% clear in colour. This should only be done if there is NOTHING LIVING in the water

Below is a fountain in my garden. (I thought it may be handy, so I took this picture earlier)

Attachment:
tr1.jpg
tr1.jpg [ 226.86 KiB | Viewed 641 times ]


As you see the water is "gin clear" and it must be a year old (the water) I do get the odd leaf blown in which is easy to grab and take out, you can easily the pump, nozzle and underwater light. But you can also see a "white dot" that white dot is a "chlorine tablet" from any online pool / spa company (You buy a packet / tub of them, not just one) it keeps the water crystal clear for a few months, then as it dissolves add another one. I add them to all my fountains.

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Last edited by someone-else on Mon May 28, 2018 10:34 pm, edited 1 time in total.

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 10:33 pm 
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Something like this would be a good option,
https://www.tlc-direct.co.uk/Products/HZ3921B.html

you will have to hide it somehow as they are not pretty but should clear the water.


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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 10:38 pm 
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adonis wrote:
https://www.tlc-direct.co.uk/Products/HZ3921B.html

you will have to hide it somehow as they are not pretty but should clear the water.


No, that is a biological filter, it is

1) Of no use since there is nothing (fish poop) to feed the "good bacteria"

2) Still needs cleaning

3) Does not clear water, it needs a UV or similar to do that

4) Not possible to easily hide

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 10:56 pm 
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someone-else wrote:
Welcome to the world of fountains, water features and ponds :wink:

You say the leaves etc just sit there and eventually turn to sludge, (sorry to state the obvious) that is because you are not clearing them out often enough.
Pond owners often clear their filters out 2-3 times / week, some even more AND they have to rinse the sponges out.
If it helps, most commercial fountains have filters, its just that like yours they are hidden from view and you just do not see them being cleaned.

Short of removing all the vegetation you have above, there is not much you can do (Even putting a mesh over the receiving tank will be of no use since that too will need cleaning.)

I can however suggest a way to keep the water 100% clear in colour. This should only be done if there is NOTHING LIVING in the water

Below is a fountain in my garden. (I thought it may be handy, so I took this picture earlier)

Attachment:
tr1.jpg


As you see the water is "gin clear" and it must be a year old (the water) I do get the odd leaf blown in which is easy to grab and take out, you can easily the pump, nozzle and underwater light. But you can also see a "white dot" that white dot is a "chlorine tablet" from any online pool / spa company (You buy a packet / tub of them, not just one) it keeps the water crystal clear for a few months, then as it dissolves add another one. I add them to all my fountains.
Thanks. I'll give the chlorine a go. I did try some pond clear solution but it's never worked. Will have to make sure the dog doesn't try and jump in our drink from it. No that he can reach though

As you can see, this is after about 3 weeks since cleaning and refilling. Can't even see the pump and it's only 20-30cm below the surface.

Are you also suggesting that a filtration system is pointless due to no aquatic life?Image

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 Post subject: Re: Pond filtration?
PostPosted: Mon May 28, 2018 11:10 pm 
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Evostance wrote:
Are you also suggesting that a filtration system is pointless due to no aquatic life?


The filter mentioned earlier is as I said "A biological filter" its purpose (Short version) is to make the water safe for fish to live in.
You have nothing living (good idea really) in your water feature, so if you buy some chlorine tablets Click here clean everything out (again) fill with tap water and add ONE chlorine tablet, (Really just one) it will stay clear for months*, just like mine does (and the water in mine is around 12 months old)



* You will still have to remove any foreign objects before they decay.

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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 02, 2018 5:21 pm 
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someone-else wrote:
Evostance wrote:
Are you also suggesting that a filtration system is pointless due to no aquatic life?


The filter mentioned earlier is as I said "A biological filter" its purpose (Short version) is to make the water safe for fish to live in.
You have nothing living (good idea really) in your water feature, so if you buy some chlorine tablets Click here clean everything out (again) fill with tap water and add ONE chlorine tablet, (Really just one) it will stay clear for months*, just like mine does (and the water in mine is around 12 months old)



* You will still have to remove any foreign objects before they decay.
All cleaned out and chlorine tablet in. Let's see how it goes Image

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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 02, 2018 5:25 pm 
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It will be fine, but do take a picture in a week or so.

(You still have to remove any large debris)

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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 02, 2018 6:25 pm 
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If all else fails treat the water with barley straw extract, A plant or 2 may do the trick


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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 02, 2018 7:03 pm 
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Bob225 wrote:
If all else fails treat the water with barley straw extract, A plant or 2 may do the trick


Sorry but that is not correct.

The water is green because of "plants" all be they micro plants (algae) they are still plants, and besides, which plants would you suggest?

Barley straw / barley straw extract is like snake oil, people buy it because they think it works. (It is a little bit more complicated than that but...........)

"Chlorine tablets" slowly dissolve, which means they last a long time, but chlorine is also a bleaching agent, it kills anything, algae, no contest.

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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 02, 2018 8:14 pm 
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This is another fountain I have, it too has "chlorine tablets" (Look about 10'oclock of the light) the other stuff you see was green leaves, but being chlorine based it has bleached the colour out of them.

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 Post subject: Re: Pond filtration?
PostPosted: Sat Jun 09, 2018 8:24 pm 
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Evostance, how is your water feature looking? want to take a picture?

Here is mine, taken about 3 minutes ago


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Fret not, a forum is a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link to find out more.

Working on anything electrical? have you got a multi meter? why not? Would you hit a nail with a shoe?

If gloom had a voice, it would be me. :mrgreen:

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