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Post by Deleted on May 8, 2021 9:12:31 GMT
I know a few people do this but not sure if anyone on here has tried it.
My theory is that three ordinary 10 inch filters beside the settling tank already present, followed by a UV lamp should provide reasonably clean and safe water for washing.
I discovered another thing while investigating filters and it turns out you can get dechlorination filters.
That's interesting because it means you can put chlorine into the water once it has been filtered, to kill bugs, then you can filter the chlorine back out of the water before using it...
Must have a play with this.
There is a fuse labeled "chlorine water" so I think Ted knew about all this but none of the filters are on the boat although there are signs of them having been fitted.
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Post by Deleted on May 8, 2021 9:15:46 GMT
And I reckon a beer keg might be rather a nice thing to play with to make up a proper sand, charcoal gravel filter unit.
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Post by kris on May 8, 2021 9:23:59 GMT
And I reckon a beer keg might be rather a nice thing to play with to make up a proper sand, charcoal gravel filter unit. sand charcoal filters are the way to go with maybe a course filter of gravel or mesh before as a physical barrier.
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Post by Deleted on May 8, 2021 9:29:27 GMT
I was wondering about maybe toweling between the fine stuff and the coarse stuff.
And looking into the sand filters you get slow ones and fast ones. The slow one gets a biological layer on top which deals with the bugs whereas the fast one uses the media as a filter more quickly.
I think I will probably do a beer keg sand filter after the settling tank as there is room for it and it's bound to extend the life of the filter elements.
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Post by Deleted on May 8, 2021 9:31:57 GMT
I've not been that interested before as there are various bulk water supplies on the Thames however these have recently been changed and the new elfin safety taps take about 5 times as long to fill so my bulk tanks which usually take half an hour would now take over 2 hours which is too long to be sitting blocking a water point.
So filtration it is. Always fancied it and now motivated to actually do something.
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Post by Jim on May 8, 2021 9:34:37 GMT
What do you do with your yellow liquid effluent @mm? Will this be a case of taking the piss, filtering and drinking it? Fish wee too?
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Post by Deleted on May 8, 2021 9:35:37 GMT
I don't think it will be suitable for salt water conversion.
Yellow effluent goes on the fields.
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Post by JohnV on May 8, 2021 9:37:38 GMT
I have been told that removal of suspended silt particles is very important and that idea of a pre-settling tank you mentioned sounds interesting.
There is no water on the mooring here (odd situation, shore power but no water seems the opposite to the norm) To get my supply involves either several hundred feet of hoses over two roads which have to be removed after use or my trailer tanker system. Neither ideal if there was a health/fitness problem.
There are two people I know who have rain water collection systems on their barges, but Sabina is a rather awkward design to do that although I maybe ought to give that some thought, although that would still need a damn good filtration/purification system.
It's a situation I really need to address
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Post by Deleted on May 8, 2021 9:41:19 GMT
If you can find old beer kegs I reckon two of them beside each other first one being the settling tank second one being the sand /charcoal filter that would probably result in an output suitable for normal filters.
Not tried it and so far there is only the settling tank but I reckon both would be really good.
Or those big blue lime juice barrels but they are a bit wrong looking.
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Post by kris on May 8, 2021 9:49:05 GMT
I was wondering about maybe toweling between the fine stuff and the coarse stuff. And looking into the sand filters you get slow ones and fast ones. The slow one gets a biological layer on top which deals with the bugs whereas the fast one uses the media as a filter more quickly. I think I will probably do a beer keg sand filter after the settling tank as there is room for it and it's bound to extend the life of the filter elements. This seems the way to go.
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Post by JohnV on May 8, 2021 9:52:41 GMT
If I am going to filter this river's water a big settling tank would be essential, there is a massive amount of suspended silt most of the time, it is never very clear except in the height of summer, in winter it is more like liquid chocolate.
I suppose one route might be to put the settling system and first prefilter ashore and use a really big container like an IBC for the settling tank
Practical for me as I have a half size container for storage next to the boat (with power)
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Post by kris on May 8, 2021 9:53:25 GMT
I have been told that removal of suspended silt particles is very important and that idea of a pre-settling tank you mentioned sounds interesting. There is no water on the mooring here (odd situation, shore power but no water seems the opposite to the norm) To get my supply involves either several hundred feet of hoses over two roads which have to be removed after use or my trailer tanker system. Neither ideal if there was a health/fitness problem. There are two people I know who have rain water collection systems on their barges, but Sabina is a rather awkward design to do that although I maybe ought to give that some thought, although that would still need a damn good filtration/purification system. It's a situation I really need to address Iβve thought about rainwater collection and filtration. But I think Iβd need to put scuppers on the side decks and use them as the collection point. The advantage being you could use gravity to filter the water or push it through the filter as it where.
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Post by kris on May 8, 2021 9:54:57 GMT
If I am going to filter this river's water a big settling tank would be essential, there is a massive amount of suspended silt most of the time, it is never very clear except in the height of summer, in winter it is more like liquid chocolate. I suppose one route might be to put the settling system and first prefilter ashore and use a realy big container like an IBC for the settling tank Practical for me as I have a half size container for storage next to the boat (with power) A flood proof system ashore seems to make sense. Youβve fitted a Hiab havenβt you? So maybe a lift on lift off system?
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Post by Deleted on May 8, 2021 9:55:56 GMT
That sounds like a good option yes.
A big tank and just wait.
I have found it quite interesting reading online about different types of separation techniques. There is even one called DAF where you dissolve air in water and release it at the bottom of the tank. The air bubbles grab hold of suspended particles and lift them to the top where they can be scraped off.
All interesting but yes the silt removal is the big problem.
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Post by Deleted on May 8, 2021 10:00:02 GMT
Another thing seems to be adding a coagulant such as alum to the dirty water. Some sort of magic thing happens making it easier to get the solids out.
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