Can copper and galvanized pipes mixed cause the hot water pressure low new water tank and still low pressure?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

The question makes no sense.

what doesn't make sense ,the house has installed half of copper pipes and half galvanized the cold water is running fine but the hot water is slow and they said it might be because it has copper and galvanized piping mixed instead of all at once.
It makes no sense because you have used no punctuation beyond a single comma (where there should be a question mark). Even with punctuation added, the grammar would not great.
As to the problem, assuming that the pipes are the correct size (bore), and none are old and full of scale, the excuse as put by you here, is nonsense. What might have been meant, is that galvanised pipe is very thick-walled compared to standard copper, so that may be the problem - the pipes are really too small. What are the dimensions of the galvanised pipe?
You are also not comparing like with like.
Cold water will almost always be at mains supply pressure, fed directly off the rising main. Hot water will be at a pressure determined by the maximum head of the system - the vertical distance between the outlet and the highest part of the hot water system (which is usually a loft tank). In a house, this usually means that a hot outlet downstairs is at around double the pressure of any hot outlet upstairs. A standard installation would give at least a 6 foot head, usually more, even in a bungalow.
Measuring the static pressure of the hot water (the pressure at the outlet, with no flow), will tell you nothing because the problem could be pressure drop when there is flow, especially if the pipe is too small.
3 people found this useful

What would cause low water pressure from a deep well tank?

It sounds like you do need to put air in your tank. Look here for a fairly clear description of the process: The exact process will depend on your system. No

What causes low water pressure?

Low pressure causes: . Low pressure supply from the main . In a rural or well system a worn or failed pressure switch. . In a rural or well system A leak in the casing . I

What causes low water pressure or low water volume?

Strange residential water pressure problems are far more commontoday than they were years ago. Part of the dilemma has to do withthe internal design of many modern faucet valv

What would cause low water pressure?

Assuming that you are referring to the water pressure found in residential plumbing, there are a number of factors that can cause the pressure to be lower than normal. The

Why would I have low hot water pressure in only two of eight water spigots I just replaced about 30 feet of galvanized hot water piping with cpvc Galvanized is 80 years old Still 35 ft galvanized?

Have you checked the faucets to see if the screens in the spout are plugged? Any time you break the pipes rust and minerals can break off and plug the screens. Yes, I have

What causes low water pressure in the house?

There may be a number of causes. First, check your PRV and see if you can adjust it to higher pressure. This is usually easy and may solve your problem. If new construction ha

What causes low water pressure in a house?

An obstruction, excessive demand, high temperatures that could expand the pipes (in this case, given a constant water pressure, the velocity of the water is slowed as the diam

How can you fix the low water pressure from the hot water heater?

Your HWH usually is not the problem, most likely the problem is at the faucet. Older homes or home where the mineral content is high can have "buildups" of minerals in the fau

What causes low water pressure in shower?

Sudden use of water in other areas of the house can decrease water flow to the hot water heater causing an incoming pressure drop so the out ward flow decreases. In newer cons