[marco]

Hello, here is the situation:
I have a bottom drain that feed by gravity a filter (central vortex ) and return to the pond by a pomp (1500 gallon/h) all in 110 mm pipes.
I have an other filter fed by a pomp from a skimmer and gravity return to the pond (1000 gallon/h).

My pond is 3000 gallon and I intend to add a bakki shower for next spring.



So the question is: where should I take the water for the bakki ? three solutions:



1/ I can add pomp from the skimmer and create an independent filter unit with gravity return to the pond.



2/ I could use the pomp from the central vortex unit and instead of going directly to the pond, bring the water up to the bakki and have a gravity return to the pond from the bottom of the bakky. (But I don’t know if I really will increase my filtration by feeding the bakki with “clean water” coming outside from the first filter.



3/ I could fix pomp to the pipe that feed the central vortex (before the filter) by a bypass and bring the water to the bakki with a gravity return to the pond. I would prefer that solution because that will clean the bottom of the pond better then now, but I don’t know if I will still have enough water for the central vortex… Does anybody has already try that solution and what is the result on the water pressure arriving on the filter ?



I thank those who will take the time to understand my question, I hope it’s not too Chinese ….

Marco