booster pump

Hi, I have a dilemma. I have ordered a shower booster pump and the installation instructions state to install after the vent pipe but as you can see from the pic it looks as if the main hot water pipe from the top of the cylinder has been tee'd twice not including the tee with the vent pipe. I...

We have a rental property and the tenant persuaded us to put a booster pump in as the water pressure is low. Now he is complaining of leaks (not sure where yet). Could it be to do with the new pump? House is about 30 years old and still has mostly the original plumbing although a new bathroom...