Approx 12-15 feet from pond to the pump-mostlly level but some up and down (the piping does not go through the side of the fish pond but up and then over into a crawlspace). From the pump area through fifteen feet of piping to a hgt of 10 feet or so above the pump to a small area and then over the waterfall.

I am based in Thailand and therefore availability of pump types may affect this: I am building a Koi pond next to the house and am thinking of using a nearby small stream to recycle the water 24/7 to remove ‘waste’ rather than place in a filtration system; the water in the stream is PH7. The stream is about 25 metres away and the head from stream to waterfall discharge point about 5 metres. My understanding is that an external pump pushing the water would be best with the overflow return by gravity. Research on the net suggests that a ‘solar’ pump would be a costly option, taking years to recover the cost, and might struggle to do the job 24/7 anyway. Any suggestions on pump type and capacity would be appreciated, balancing initial outlay with running costs and longevity at 24/7.

I am going to have a bottom drain, skimmer and waterfall filter? Are External pumps loud? Thanks

If so do they make boxes to keep the pump in to keep them from getting wet. Thanks

Designed for moderate to high volume pumping for both ponds and waterfalls. Heavy duty 115 V pump is extremely energy efficient. Single speed. 6120 gph capacity.

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