Jump to content

Recommended Posts

Posted (edited)

No idea how long these Mitsu pumps are meant to last but this one is 9 years old. Leaking from somewhere, slightly. Not the pipes or from the black nut at the bottom so must be right underneath. Is this a common fault when they have been in a while? Also, are those smaller box like ones any better, mainly for shower upstairs?

pump.jpg

Edited by clivebaxter
Posted

Our first one lasted about 14 years before a pinhole appeared in the pressure tank. Replaced it with same brand/type but the next biggest HP in the range as the house and outlets had also expanded during those 14 years.

 

I bought a replacement tank on lazada and got a set of new o-rings and seals from the local water pump emporium and rebuilt the old one. This pump is now a spare but has been used a couple of times to feed water to yai's allotment and the brother-in-law borrowed it when his own pump went tits up.

  • Like 1
Posted

A pin hole would not be uncommon as they do rust - new tanks are available but if you want more pressure probably better to buy pump that can provide.  Believe the new box constant pressure pumps are generally higher pressure (although some are louder than a jet plane) but changed to Grundfos many years ago to overcome the shower issues (very good/quite and high pressure pumps).  But be aware any increase in pressure could cause issues for some plumbing here - we had to redo our house built on 1975 to new pipes (external now and really not that hard or expensive to do).

  • Like 1
Posted
1 hour ago, clivebaxter said:

No idea how long these Mitsu pumps are meant to last but this one is 9 years old. Leaking from somewhere, slightly. Not the pipes or from the black nut at the bottom so must be right underneath. Is this a common fault when they have been in a while? Also, are those smaller box like ones any better, mainly for shower upstairs?

What you have is from the Well Pump series, they fluctuate in output pressure.  They also tend eventually to develop a hole in the pressure tank which is easily replaced and also need to have the tank air cushion replaced by bleeding the water from the tank.
 

The square pumps are Constant Pressure versions and Mitsubishi recommends those for showers, and cost almost exactly the same for a similar powered pump.

  • Like 1
Posted
2 minutes ago, lopburi3 said:

A pin hole would not be uncommon as they do rust - new tanks are available but if you want more pressure probably better to buy pump that can provide.  Believe the new box constant pressure pumps are generally higher pressure (although some are louder than a jet plane) but changed to Grundfos many years ago to overcome the shower issues (very good/quite and high pressure pumps).  But be aware any increase in pressure could cause issues for some plumbing here - we had to redo our house built on 1975 to new pipes (external now and really not that hard or expensive to do).

For Mitsubishi pumps of similar power there is no difference in output pressure between the WP and EP series 571829389_Mitsubishiwaterpumps.JPG.0ffd32bc2f53b7cd806cc01bf17ea9f1.JPG

I also got a Grundfos pump so I can increase the house pressure if needed.

  • Like 1
Posted
7 minutes ago, sometimewoodworker said:

For Mitsubishi pumps of similar power there is no difference in output pressure between the WP and EP series 571829389_Mitsubishiwaterpumps.JPG.0ffd32bc2f53b7cd806cc01bf17ea9f1.JPG

I also got a Grundfos pump so I can increase the house pressure if needed.

But there are a number of makes so not sure what pressures that all produce, suspect some are higher pressure and compete with Grundfos - we run our Grundfos 3.5 - 4 Bar and works well for good shower pressures.

  • Like 1
Posted
11 minutes ago, lopburi3 said:

But there are a number of makes so not sure what pressures that all produce, suspect some are higher pressure and compete with Grundfos - we run our Grundfos 3.5 - 4 Bar and works well for good shower pressures.

The other major brand, Hitachi, pressures are the same or slightly lower than Mitsubishi and none of them go above 3 Bar. So it looks as if Grundfos are alone of the major brands to exceed that.39292812-C976-4AEF-8BAD-5FCAF6B83968.thumb.jpeg.ecc1bcc23f4a5be4ae3480535a43fa43.jpeg

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.


  • Topics

  • Latest posts...

    1. 20

      Thailand Live Sunday 24 November 2024

    2. 54

      Is this the "Little Surprise" of 47 and the Speaker?

    3. 0

      Surin Man Drives Car with Pedestrian’s Body on Roof for Over 30 Km Before Being Stopped

    4. 0

      Myanmar Worker Rescued After Hand Trapped in Meat Grinder for Two Hours

    5. 0

      4-Year-Old Boy Drowns in Reservoir Construction Site

    6. 0

      Chiangmai urologist

    7. 20

      Thailand Live Sunday 24 November 2024

    8. 20

      Thailand Live Sunday 24 November 2024

  • Popular in The Pub


×
×
  • Create New...