No problem.

It is easy method to check if your bathroom have good pressure or not. Ask your plumber to put a gauge on the tap and read what is the psi/bar. Anything above 40psi is good enough. This is general pressure maintain and suggest by forumner here. From here you can know pump or no pump. No need wait.

If don't want pump first, 3 hole from tank and 3 1" pipe to bathroom. Later want pump, just chop of and cap the pipe from tank. PVC pipe easy to modify and change.

Probably can get it at those plumbing hardware shop or those selling tools like compressor air equipment. Not normal hardware shop. Another is at shah alam. Selling pneumatic equipment. Google for SMC.

My working place have a lot this gauge lying around. Curi 1 put in my home too.

As I said, working on PVC pipe is easy. If your plumber tell you PVC difficult to modify, it is bullshit.

If you put in a pump too, you still need to modify it to relocate your pipe. Depend how your plumber install it. It still cost you.

Another problem is, if you instal 1 main pipe out 1" and branch to 3 pipe without the pump, you will possible facing flow volume and pressure if all your bathroom using.

The best is, install the pump now. Since you redo the pipeline. It save your cost for plumbing since your plumber redo the pipe. The pump cost is small compare your renovate.

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Added on April 24, 2012, 9:27 amYup. That is the address. I m not sure you can buy cash. But they do have counter walk in customer. We buy alot of thing from them. But terms.

Can get it for you from my working place. If you don't mind 2nd. It is for air. But can use on fluid. Provided no water hammering.

This post has been edited by ozak: Apr 24 2012, 09:27 AM

Actually the piping is the same with my drawing. It is still 3 bathroom pipe out from the tank. Not 1 pipe and branch to 3pipe.

You need to know how tall is your tank from your 2nd floor if you cannot using the gauge to check the pressure.

There is no specific lenght. The tallest the better. But need to include the consideration of the pipe size, tank size and the pipe bending too. All this will contribute to pressure reduce.

There is only 1 type. I dont no how does swing check valve look like. Any brand will do. Check valve is very common part. Just like pipe fitting part only.

Whay you mean of "explore" ?

This post has been edited by ozak: Sep 2 2013, 06:14 PM