water pump brand and type

[flipper2222222]

hi all, 

about to purchase a water pump, 

2 level house, with a big water tank in the kitchen next to 150W water pump currently installed.  house is in northern suburbs of BKK

upstairs shower pressure is poor. 

 

someone is trying to talk into me into a 400 W Carina

https://www.homepro.co.th/m/p/1151775

 

anyone had any experience with this Carina brand? I was thinking to buy a Hitachi or Mitsubishi

 

Also this is an automatic pump but I was preferring a constant pressure pump, is there any great difference in performance?

 

any helpful suggestions much appreciated. 

[flipper2222222]

https://www.hitachi-homeappliances.com/th-en/products/water-pump/shallow-well-tank/wt-p150gx2.html

 

we have this model now, it has woeful pressure

[bankruatsteve]

Hitachi 250W is good for us (2 floors).  Constant pressure pump.

Edited December 10, 2021 by bankruatsteve

[MrJ2U]

2 hours ago, flipper2222222 said:

Hitachi or Mitsubishi

Stick with those brands.

There easy to fix.

 

Good thing about buying it at Home pro if theres a problem they'll have it fixed and cover any shipping costs. 

 

We have a two story house and I purchased a Mitsubishi Super Pump.

Constant pressure a relatively high pressure for good showers.

 

 

Edited December 10, 2021 by MrJ2U

[Yellowtail]

Are you sure the problem is pressure and not flow? 

 

Did the shower use to be good and now it's not?

Has it never been good? 

Did you just move in and have no idea? 

 

 

[flipper2222222]

On 12/12/2021 at 12:19 AM, Yellowtail said:

Are you sure the problem is pressure and not flow? 

 

Did the shower use to be good and now it's not?

Has it never been good? 

Did you just move in and have no idea? 

 

 

the pump is 10 years old and only 150 Watt.

 

I am going to buy one of these 

 

https://product-selection.grundfos.com/au/products/scala/scala2?tab=models

 

 

[sometimewoodworker]

4 hours ago, flipper2222222 said:

the pump is 10 years old and only 150 Watt.

 

I am going to buy one of these 

 

https://product-selection.grundfos.com/au/products/scala/scala2?tab=models

 

 

That’s the one I have, one word of warning, you can control the output pressure from 1.5 bar to a maximum of 5.5 bar. Our water system is designed to be able to cope with this pressure however we use the 2.5 ~ 3 bar setting as for us the higher pressure is not needed. If you are fitting it to an existing pipe system I suggest starting low as it’s maximum is much higher than most other brands and it is very easy to increase the available pressure 

 

the Mitsubishi super pump has a maximum of 2.9 bar or 3kg/cm

Edited December 15, 2021 by sometimewoodworker

[flipper2222222]

On 12/15/2021 at 12:43 PM, sometimewoodworker said:

That’s the one I have, one word of warning, you can control the output pressure from 1.5 bar to a maximum of 5.5 bar. Our water system is designed to be able to cope with this pressure however we use the 2.5 ~ 3 bar setting as for us the higher pressure is not needed. If you are fitting it to an existing pipe system I suggest starting low as it’s maximum is much higher than most other brands and it is very easy to increase the available pressure 

 

the Mitsubishi super pump has a maximum of 2.9 bar or 3kg/cm

thanks for the information very interesting, I will look closer when I get back to the home. might come back to you on this as you appear to have some experience with it.