Archive for December, 2011

PEX Tubing for Residential Plumbing Systems & Demand Pumping Systems

Wednesday, December 7th, 2011 at 6:25 pm  
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I was asked earlier today if a hot water demand system would work with one of these new PEX plumbing systems that use remote manifolds. Well the short answer is yes. You can basically use a hot water demand system with any hot water distribution system.

 

The only criteria are that the cold water faucets are connected somewhere in the house to the inlet of the water heater, and the hot water pipes connect to the water heater outlet. It doesn’t matter if it’s a tank type water heater, a tankless water heater, or a solar water heater, a good demand system will work with any of them.

What is Pex Tubing?

Pex is a modified polyethylene material that has good properties for use in water distribution systems. A PEX plumbing system uses PEX tubing including 3/8 inch, ½ inch and ¾ inch diameters.

Using PEX tubing allows you to use long continuous tubing runs between the source of hot water and the fixture without the need for elbows and other fittings. This keeps pressure drops to a minimum and reduces labor.

Typically PEX systems will have a main trunk line or lines connecting to manifolds. The manifolds normally have a shut off valve at each outlet so the individual piping runs can be turned off individually. 3/8 tubing is often used for the run from the manifold to the individual fixtures.

Advantages of PEX tubing

With such small diameter tubing the water velocity is high and so the hot water reaches the fixture more quickly than with a conventional piping system.

The low volume of water contained in the tubing results in a small conservation of water compared to conventional piping systems.

Other potential advantages include the ability to expand enough to absorb water hammer reducing the noise from suddenly turning off the water, and the ability to resist scale build up.

PEX tubing should not be exposed to sunlight and can’t be used where it will be subjected even to reflected sunlight.

Hot Water Pumps and PEX Tubing

Typical demand hot water pumps and systems would be beneficial for manifold type PEX systems in cases where the trunk line feeding the manifold was very long. In those plumbing layouts where the trunk lines are long, a demand pump can be connected between an outlet port on the hot manifold and an outlet on the cold manifold.

For “home run” type piping layouts, a demand hot water system would not be practical. You would need a pump for each run, and with the small tubing you would not be saving much water or time either.

Looped Plumbing with PEX Tubing

Looped plumbing, where the piping is looped from fixture to fixture when equipped with a demand hot water pump is the greenest solution. That way you can place a demand hot water pump at the end of the line, and get fast efficient hot water delivery at every sink. It will save a lot of water and it will be very energy efficient.

Tankless Water Heaters and PEX Plumbing Systems

There is no reason PEX tubing can’t be used with tankless water heaters. The hot water delivered by a tankless water heater is no different than the hot water delivered by any other kind of water heater.

In some cases PEX systems can benefit tankless water heaters since tankless heaters take a little longer to deliver hot water to the fixtures.


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Sydney Plumbers – 24/7 Service

Wednesday, December 7th, 2011 at 6:25 pm  
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Sydney plumbers provide solution to all your plumbing problems, be it blocked drains, blocked pipes or blocked toilet bowls. Blocked toilets can create a mess in your bathroom and the blocked toilet has to be cleared immediately. This is where the service of a Sydney plumber becomes handy. They are available 24 hours a day everyday and they are experts in unblocking toilets. Unblocking a toilet cannot be done by you. So you will have to call a plumber who will be able to advice you as to how to unblock a toilet.

If you have a blocked drain problem, there are few ways it can be cleared. The best method is to use a plunger. You can un-clog blocked drains with drain cleaning chemicals or plumping snake. But if it something you can’t rectify yourself, you should hire a plumber. Sometimes grease build-up can be the cause of blocked sewer pipes. A burst pipe can cause flooding in the area and it can cause various diseases. Sydney plumbing services provides fast and professional plumbing services for all residential and commercials problems and help in clearing blocked toilet and clearing blocked drains.

For your hot water service, installation and repair, call the plumping Sydney companies who offers 24 hours service on all makes and models of water heaters. They have a team of licensed plumbers, who can do all plumping works with professionalism and repair any kind of hot water systems.

Everybody who owns a house has water heaters installed in their bathroom. Sometime, it takes time for the water to become hot. Now if you want instant hot water as soon as you open your tap, you should install a instant hot water heater. They are available in various models. Instant electric water heater will give you hot water in just 2 seconds.

When there is water restriction in Australia, you need water to save your plants, wash your car, or various other uses. How to store water? You have to find a good rainwater tank, buy in and install it in your home. You can use this tank to collect the rain water which can be utilized later. So you don’t have to worry about shortage of water. There are wide selections of rain water tanks and accessories available in Sydney.


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