air gun ant 1,666 Posted March 10, 2016 Report Share Posted March 10, 2016 Just checked on the render as I did the bottom Monday and it's about 3/4 inch Deep luckily the bottom is set good and it's holding water lol but I need to paint it first befor the water goes in hahaha what have you plumbed the drain in to mate? Just a soak away or did you run it to a drain or something? Also do you just use a plug or is the a ball valve or something somewhere? Looks great btw Quote Link to post Share on other sites
jeppi26 1,855 Posted March 10, 2016 Author Report Share Posted March 10, 2016 The bottom drain will go to the filter system as well as a tee that goes into the drain if ever I need to fully drain out mate. What I have/am doing is putting the filter system at the same level if not a tad lower than the water level of the pond and the water will find its own level so no need for pumps or anything to pump back into the pond Quote Link to post Share on other sites
air gun ant 1,666 Posted March 10, 2016 Report Share Posted March 10, 2016 Won't you need a pump to cycle the water through the filter tho? Quote Link to post Share on other sites
treecreeper 1,136 Posted March 10, 2016 Report Share Posted March 10, 2016 Let us know if it works I can save some elecy Quote Link to post Share on other sites
jeppi26 1,855 Posted March 10, 2016 Author Report Share Posted March 10, 2016 Won't you need a pump to cycle the water through the filter tho? No mate it's all gravity fed so should be no need for pumps Quote Link to post Share on other sites
sussex 5,776 Posted March 10, 2016 Report Share Posted March 10, 2016 Won't you need a pump to cycle the water through the filter tho? No mate it's all gravity fed so should be no need for pumps Once the water levels out surely it must stop ? I had gravity filters in mine but it needed a small pump to cause a flow through the filters . 3 Quote Link to post Share on other sites
treecreeper 1,136 Posted March 10, 2016 Report Share Posted March 10, 2016 (edited) http://www.pond-life.me.uk/forum/viewtopic.php?t=7981 This explains it better than I could mate but either way you need a pump Edited March 10, 2016 by treecreeper 1 Quote Link to post Share on other sites
jeppi26 1,855 Posted March 10, 2016 Author Report Share Posted March 10, 2016 My bad must not have read about the drain right when I was looking it last year lol I was looking up about bottom drains and built in filter pumps mat the time and bottom drains seemed the best option. But even though you do need a pump it only needs to be a small one? Maybe like the one in the link after the filters. Something that will just pump out a steady flow out the waterfall? Quote Link to post Share on other sites
jeppi26 1,855 Posted March 10, 2016 Author Report Share Posted March 10, 2016 Won't you need a pump to cycle the water through the filter tho? No mate it's all gravity fed so should be no need for pumps Once the water levels out surely it must stop ? I had gravity filters in mine but it needed a small pump to cause a flow through the filters . Your right mate I must have not read everything when I was reviewing pumps and b-drains at the time thanks for the heads up mate 1 Quote Link to post Share on other sites
sussex 5,776 Posted March 10, 2016 Report Share Posted March 10, 2016 Won't you need a pump to cycle the water through the filter tho?No mate it's all gravity fed so should be no need for pumpsOnce the water levels out surely it must stop ? I had gravity filters in mine but it needed a small pump to cause a flow through the filters . Your right mate I must have not read everything when I was reviewing pumps and b-drains at the time thanks for the heads up mateJust to add it looks excellent ... 1 Quote Link to post Share on other sites
ryaldinhio 4,125 Posted March 10, 2016 Report Share Posted March 10, 2016 You should have your water cycling at about half the volume per hour. so in theory after two hours all of your water has been through the filter. both gravity fed and pumped systems need a pump. the difference being that in one system you pump water into the filter and gravity takes it back into the pond. In a 'gravity fed' system you pumo water into the pond and gravity takes it back into the filter. with the system you are doing rex you will need a pump in the last compartment of your filter. size wise it will need to have enough duty to cycle the water at rate above. the benefit of this is that the pump is only moving clean water so rarely have any issues with them. down side of these types is they can develop leaks and it is inevitabley at the drain connection at the lowest point of the pond! 1 Quote Link to post Share on other sites
jeppi26 1,855 Posted March 11, 2016 Author Report Share Posted March 11, 2016 Thanks for the info mate much appreciated. I have just worked the volume of water in the pond 680 gallons so what size pump woul I need?? Pardon me ignorance I am no good at maths lol Quote Link to post Share on other sites
ryaldinhio 4,125 Posted March 11, 2016 Report Share Posted March 11, 2016 680 gallons is about 3000litres. You need to shift that every 2 hours. so you need a pump that will shift 1500 litres an hour or 25 litres a minute. If I were you I would over size it. A lot depends on how many plants/fish etc you have. my last pond had quite a few koi so in summer I used to cycle the water every hour and turned the flow down in winter. 1 Quote Link to post Share on other sites
ryaldinhio 4,125 Posted March 11, 2016 Report Share Posted March 11, 2016 Meant to say the filter needs to be level with your pond water level in this type of system. 1 Quote Link to post Share on other sites
jeppi26 1,855 Posted March 11, 2016 Author Report Share Posted March 11, 2016 http://m.ebay.co.uk/itm/111660359015 Would this be anygood mate? Quote Link to post Share on other sites
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