We recently purchased a house and became pool owners for the first time.
This spring we had landscaping done in the backyard.
We had a natural rock waterfall installed and now that it is finished the water just trickles out of the system and it doesnt really look like a waterfall.
The pool is 14X28 X4.5 with one outlet thru the filter basket and two inlets into the pool.
The line is 1 1/2 from skimmer to a Hayward 0.75hp pump (Super Pump Model C48J) then thru a Hayward Variflow XL Valve - attached to a Pro Series High Rate Sand Filter.
Connected to a Hayward Gas Heater - Model 250FDN
The output of heater goes through a Zodiac Clearwater LM2-15 module and then immediately after that the landscapers put in a TEE and the line can return to the pool or it heads to the waterfall. There is no valve to shut off the return to the pool - only a valve to shut off
The line to the pool is 1 1/2" flex line
The line to the waterfall starts at a simple ball valve and 1 1/2" line then changes to 2" flex line to a manifold with a tee in the middle from the pump and two Tee's on either side equally spaced.
The manifold is 1 1/2" and then immediately off the manifold the lines (4 of them) are necked down to 1 inch. Each of the four lines has a simple ball valve.
SO here are the issues.
1 - the pressure climbs at the vari-flow to about 13 psi and then the heater shuts off - showing LO on the readout. when you direct the line to waste for a minute or to rinse and then back to flow the pressure drops to around 10 and the LO readout disappears and the heater can restart.
2 - when you open the valve on the waterfall side - the heater also reads LO
3 - when the valve is on at the waterfall - the water just trickles out and over the edge. Not even close to a cascading look.
I had a company come in and pressure test the lines and they found no problems.
What is causing my pressure problem and my heater problem?
And why am I not getting good flow at the waterfall?
Is this a pump sizing problem?
Is it a plugged line somewhere (caused by all the recent landscaping work completed and the sand/mortar that fell into pool?
Thanks for the help