Frequently Asked Questions

Question:

Hi Bob, My brother installed a 2400 gallon pond approx 10x20 that you had done some modifications of the barrels he used to make the pond work correctly like your votex system ,we also bought a polaris pump at the same time .My problem is since now I am now taking care of the pond my last barrel sucks dry when the pump is on. I know there are two bottom drains which form a y into the filter system. I have checked for blockage but havent found any. I am thinking I will need to drain the pond completely to really figure this out. I do remember you telling my brother he should block off the drain furthest from the waterfall which I tried but it still sucks dry. do you have any suggestions or do you offer a service to evaluate my pond and make any corrections to the installation to make it work correctly. Thanks Patricia

Answer:

Patricia, First, did the system ever work correctly. Has this problem developed slowly over a period of time, or quickly. There are many possabilities, that are difficult to analize with out additional information. Your email tells me you ae probably local (Long Island). Why not save my site fee, and come into the office on a Saturday (9AM - 4PM) or Sunday (10:30AM - 2:00PM) with several photos of the pond and filter system. I am almost ceertain we can figure out the problem at the office. The valve controlling the bottom drain closest to the filter may have to be closed slightly so that the bottom drain furthest from the filter will have a similar flow rate as the other, (water takes the path of least resistance). You mention a "Y" fitting in the bottom drain lines. I hope this "Y" does not connect the bottom drain lines. The water must flow independently from the bottom drains to the vortes filter. A 10'x20' pond at 2400 gallons would have to average less than 2' deep. (10'x20'=200sq.ft.x2'deep=400cubic foot x 7.48= 2992 gallons) Please acuratly measure the average length, width, and depth of the pond prior to coming to the office. We also need to know the gallons per hour of the Polaris pump, or look at the pump ID label. What is the horsepower of the pump? Hope to see you soon..............Bob

Question:

Hi Bob-- I was looking at your photos of bottom drains and thinking about the easiest way to add a drain to a pond. Why couldn't I just turn a four-inch drain upside down, attach it to the right size of flex hose, and run the flex hose up over the side of my pond? I'd proobably have to use an above ground filtrer, but, so what? Pat

Answer:

Hello again, Your trying to make apple pie with peaches. First I have a retro-fit bottom drain. Second you can not (no matter what anyone tells you) come over the top of a pond, then connect to an in-line pump (even with a check valve). It will not work (been there-done that). Why not do what is done every day. It's simple and it works (guaranteed). Lower the water level in your pond to about half. Leave the fish and water plants in the pond. Cut a hole through the liner in the side of the pond. Install a bulkhead with an elbow facing down. Run pvc pipe from this point down the side of the pond. At the bottom, place a second elbow and run pvc pipe to the deepest part of your pond. Now attach the pvc pipe to a retro-fit bottom drain. Out side the pond, use pvc pipe to a vortex (the way to do it), or go directly to your pump (not the way to do it} I need to know the pond volume in gallons, and the gph of your pump to recommend either a 2"- 3"- or 4" retro-fit bottom drain and bulkhead. Thank you.............Bob

 

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