Pond build 17

Pond construction

Ron's pond 17. Filterhouse & electrics


My next job was to install the electrical side of things. Armoured cables provides power to the filter house via a pair of RCD units to keep things safe before a conduit system routed power around the area. At this point a single airpump is in use to test the airlines although the finished system will have five pumps delivering 240lpm of air into the system (100 via the airdomes and 140 into the filters)
	The remaining pipework was then finished and the three pumps to power the system installed. Swimming pool type pumps have been used due to the long pipe runs in order to maintain the required flow rates. Each primary pump returns 2000 gph through each of the filter runs which means that 4000 gph is circulating through the filter systems giving a turnover tine of slightly under 2 hours. The third pump powers the sand filter and is only used intermittently to polish the water.
Together with the skimmer pump the system is capable, if required, of returning around 9000gph via the TPR returns to provide massive circulation to the pond.

A sump has been built that will take the waste from the filters and also the two 4" purge lines direct from the bottom drains. A submersible pump with a float switch will pump the water to the drains near to the house. Joists were added to the area which would eventually be decked over to provide a working floor area to the filter house.
	Click on any image for a larger image
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This website started with a booklet which I made up originally for the help of those members of the BKKS - South Wales Section who were intending to start building a koi pond, and as the website has expanded more information and articles from other people have been included. This is for general guidance only, and we do not take any responsibility for problems that might occur by following these ideas. It is important that you check out everything in your area, and check on local laws and rules that may apply.

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