New answers tagged

1

How much energy do you need? In four months you spend $7500, so assuming you heat using natural gas, that would indicate a consumption of about 19,000 cubic meters. At 10.8 kWh per cubic meter, we're talking 200,000 kWh; in four months that's an average power requirement of 70 kW. Can the Sun help? Reasonable solar output in New York is around 5 kWh/m^2 ...


1

To reduce your energy costs you have a few options (some taken from comments and not from the post). First if your temp is set to 83.5 that is the largest part of your problem. A lower temperature would be desirable. The "best" range for swimming is 77 - 82. If your not swimming turn it down to the 60s or lower. If you are swimming then 77 in the winter ...


1

It might nt be the mose aesthetic solution, but the best way to heat your pool with solar power is to paint it black rather than white/blue or whatever it is. Or spread black foil over /under the surface when not in use. I've used that for a small (3m dia, 0.6m deep) pool, very effective and low maintenance (as long as you ensure water flow at both sides). ...


9

This has already been said in one answer - but I want to say it again so that it is very clear. Generating electricity from solar only to then turn around and run electric heaters for the pool is not an efficient way to go at all. Overall such system will likely be less than 10% efficient in terms of solar energy conversion. Go with a solar water heater ...


7

You have a pretty big pool by residential standards but I still am surprised it is costing you that much... almost $2k per month! Assuming a price of $.90 / therm (average in the NY area, according to some random site I found) and the numbers on this US Energy Star page, that's more than double what you should be spending for a 1800sf pool in New York. ...


22

PV panels are ~15% efficient. Hot water panels are much more, and probably much cheaper. Way more efficient to just heat the water, rather than convert to electric and then to heat. Maybe with the exception of a heat pump... $$$


0

I don't think this is going to work. Shop-vac posts their specs here: https://www.shopvac.com/specifications/quiet_series.asp Even their most powerful vacuum only has a sealed pressure of 64 inches. I would presume that the blower would have the same pressure. I don't know specifically what you are using an air pump for to close a pool but I think you may ...


2

There are three reasons why you need not worry: UL/CE rating I think you will find it is UL or CE rated I know with UL the items are tested and abused like any home owner would, not as sure about CE but some equipment I helped build to send over the pond had 3rd party inspectors checking every part to make sure it could be CE compliant. The pump should ...


2

PVC (plumbing) is not rated for sunlight exposure and needs to be painted or otherwise shielded from sunlight. PVC (electrical) is not rated for plumbing/pressure use, but is UV resistant. So, if you have unprotected PVC pipe in the sun, expect more problems. And paint it, though already-damaged sections may still fail after painting due to existing damage....


1

It has not been winterized properly. Enersol FAQs have some great tips regarding "removable end-caps on the roof" that need to be opened. EnerSol FAQs


-1

Generally water pressure must risen when you adopt from larger size to smaller diameter pipe.This is depend on length continued ,if is short adopt 1' or 2'" then you double the pressure and power spray ,but if go longer length and distribute to many branches then pressure will fail .in this case you need to create a lope return pipe in some section to the ...


2

I will answer your questions in turn, and then add a few notes at the end -- the code for pools is complex, partly because they are bespoke installations for the most part and partly because of how pool electrical safety evolved over time. You actually cannot do this -- the wire run must be in conduit as per 680.25(A)(1). You can use Schedule 80 PVC or ...


1

Too much cyanuric acid (stabilizer) will keep chlorine from being available to sanitize, so you'll need to monitor its level and switch from dichlor/trichlor if the level gets too high. Using calcium hypochlorite to raise chlorine level will increase calcium levels. You want to keep calcium hardness high enough that the water doesn't leach minerals from the ...


-2

Throw black trash bags on the surface of your pool.


2

The white wires from a GFCI or surge protector need to go to a neutral bus that is isolated from the ground bus in a sub-panel. You don't currently have that in the two-pole breaker enclosure that you have now. DON'T attach a GFCI neutral (white wire) to the ground bus. This is a violation of the code and can be dangerous as it puts neutral current on the ...


1

You cannot connect a sub-panel with only 3 wires unless it is 240 volt only (no neutral). By code, neutral and ground must only be bonded at the main panel (or main disconnect if separate). You cannot have them bonded at the sub.


2

You can change out the old breaker feeding the pump. This would be the safest way. A surge protector should be located close to your service this would then protect everything not just the pool. I voted up because it is easy to swap an old non GFCI for a GFCI protected breaker and this will make the current pool service much safer.



Top 50 recent answers are included