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Is it normal to have air in the return lines if the pipe pressure is OK and the skimmers are full of water?
I think it could be normal, if the pool is not losing water. On my filter and pump, I have a valve, that when open, causes bubbles to come out of the low end jets, simulating the jets of a jacuzzi. When closed, there are no bubbles. If the pool is losing water, then the appearance of bubbles in the pump, or coming out of the jets could be due to air from from the outside which would mean a leak in one or more of the lines or at the fittings. Also, I'm curious as to how one would "pressure check" a return line from the skimmer, the main drain or vacuum line since these wouldn't be under pressure from the pump. If your pool is blowing air back into the pool through the return lines, it is caused by an air leak, on the suction side of the pump. Because the pump is above the water level of the pool, you will not lose any water. To check to see if you are sucking air at the pump, turn the pump on and take some dish detergent and squirt it along each Plumbing fitting in front of the pump. Watch to see if any soap bubbles form in the pump housing. If so, you'll probably need to to replace those fittings, one of them is leaking.
ANSWER::
The leak discussed above could involve both in and out fittings on the pump or it could be a leaking pump seal or a loose pump lid or lid gasket. The probable cause of this leak at the fittings is that the pump ran dry at some point in time causing the PVC fittings to become hot and shrink.
Pressure testing of the return lines involves plugging those lines at the pool and and pump. The people who do this sort of thing have a tool or tools to insert in the system and introducing air into those lines monitoring pressure loss in each particular line through a process of elimination.
K
What else can I help you with?
What are lines on a map that join places that have equal air pressure?
Lines of Barometric pressure
The contour lines drawn on a 500 mb chart are lines of constant?
The contour lines on a 500 mb chart are lines of constant pressure at 500 millibars in the atmosphere. These lines connect points of equal pressure at that specific level, providing a visual representation of the pressure patterns in the upper atmosphere.
What do Meteorologists draw lines called blank on weather maps to connect locations with the same air pressure?
Meteorologists draw lines called isobars on weather maps to connect locations with the same air pressure. Wind blows from areas of high to low pressure.
Isobars are lines ona map joining places that have the same?
Isobars are lines on a map joining places that have the same atmospheric pressure.
What are the lines connecting points of an equal air pressure on a weather map is called a what?
The lines connecting points of equal air pressure on a weather map are called isobars. These lines help meteorologists identify high and low pressure systems, as well as understand wind patterns and weather conditions. The spacing of isobars indicates the strength of the pressure gradient, with closer lines suggesting stronger winds.
Why do you have sock lines?
The elastic makes marks that take time to return to normal.
Does the radiator for a 1996 Jeep Grand Cherokee have two transmission lines?
Yes, pressure and return cooler lines.
What lines are coming off automatic transmission?
Pressure and return lines that goto radiator and or transmission cooler to keep the ATF chilled off.
What makes a boiler lose water pressure?
A leak on the return or supply lines and the automatic feeder is not working
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turbos are cooled with oil and that oil is supplied from oil pressure lines. check out the turbo and trace the lines; they should return to the oil pan.
Where is the return fuel line on a 93 Saturn SL2?
the fuel return line is on your fuel rail. it is part of the Pressure regulator assembly. Please view my Bio for access to my Saturn help site. in the fuel folder, go to Fuel pressure lines. the return line is highlited in green for you
Where is the fuel line on a 2000 Chevrolet Impala?
There are 2 fuel lines. One is a pressure line to the injectors and the other is a return to the tank.
Where are the transmission cooler lines for a neon?
The transmission cooler lines are located coming from the radiator on the bottom. One is for the sending and the other for return. The lines are high pressure, just as your radiator hoses are when the car is running. The lines go from the radiator to the top of the transmission.
How many lines should be return ADDRESS?
a return address should have 2 lines
Which power steering line is the return line on a 1992 Dodge Dakota?
the return lines are 99% of the time the ones with the smallest diameter.(also are not bolted down like the high pressure one)
How many fuel lines go to the engine on Buick Riviera?
The 3800 engine (fuel injected) has a pressure feed to the fuel rail (smaller line) and a return from the pressure relief valve (larger line). All fuel lines use the O-ring fuel connectors.
What are lines on a map that join places that have equal air pressure?
Lines of Barometric pressure
