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Thread: Waterfall installaion and Deck jets from separate pump

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    Waterfall installaion and Deck jets from separate pump

    I have a project of fixing an old waterfall that has stopped working for some time now. It is 6 feet high wall and about 30" wide. The container itself was made from steel and was fully rusted, the pump that was running it had a 1HP and it is seized stuck. (looks like it leaked through the shaft and killed the bearing to a complete seize.
    So, my plan is to buy a new 36" Oasis Rainfores water fall ( ... orest.aspx)
    I will need to buy a new pump as it is not worth fixing the existing old pump. The old pump had a 1.5" line coming from the pool side wall about 2-3 feet down from water line. Also in the basin, there is a 2" pipe that simply removes the water back into the pool by means of gravity such that a level of water is always maintained in the waterfall basin.
    While I'm there, I would like to add deck jets from Jandy ( ... -deckJets/)
    Now, The waterfall needs about 15GPM, and the jets need about 5GPM each. A jet also has 11 feet of head. The top of the waterfall is 6' from basin and pump would be installed just on the back wall of the waterfall.
    I figure that the best approach would be to get a 2 speed pump like Jandy FHPM1.0-2 (
    My reasoning is that with the low speed it would pretty much provide me with the 15GPM for the water fall. And if I would want to turn on the jets too, i will cycle the pump t high speed and that will get me the needed 40-45GPM @about 50-60 feet of head (most created by 4x11 of the jets plus about 30-40 feet of pipe)
    If you guys did something similar or see where I'm wrong, please let me know, i would really appreciate some help here from experts as I'm really a beginner here...
    35k gal 850sq ft french gray plaster, Jandy JEP1.5HP ePump, Pentair 60sq DE filter, Pentair Intellichlor IC40, 10 Fafco sunsaver 12'x4' panels with Goldline GL35. Laars lite 325k BTU NG heater, Hayward Colorlogic 4.0 LED light. Plumbing: 2" PVC, No main drain, four 1" returns, 1 skimmer with 2 wall drains, one 1.5" suction cleaning port.

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    Brentr's Avatar
    Join Date
    Oct 2009
    Jacksonville, FL

    Re: Waterfall installaion and Deck jets from separate pump

    Put on neverlube adjustable valves for all festures so that you can control flow to each feature. I have these install for my four features.
    6,000 gal, IG free form,Beach Series Antigua by Marbletite Pebble finish,Sheer Descent, IG Fountain, Dolphin / Mermaid Statues,Dura- Glas 1.5hp pump,Hayward Pro-grid DE4820, Aqua Rite SWG with T-Cell 15,Heat Siphon Heat Pump DX 5.0 109,000 btu, Pool Cage, 1800sq ft Tremron Estate Pavers,Aquatherm Ecosun Solar Panels 192 sq ft with GL-235 Controller,Pentair IntelliBrite, Apollo Magnetic Stirrer Our New Poolbuild, Jacksonville, FL yr 2009 Solar install Outdoor kitchen upgrade

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