Install 12 meter water tower- Help to find a good company

[Doisaketdreamer]

I am planning to have a 12 meter high, galvanized steel tower constructed with a 2500 liter fiberglass tank, a submersible bore pump with a 4 inch diameter on a 3 meter concrete platform. Can anyone suggest a company in the Chiang Mai area that could do a good job with this? 

[Dante99]

Do you want the whole package including the well and tower?

 

Lanalatic probably could do it all and very well but they are not cheap. They provide written detailed bids.

 

Filter??

[canuckamuck]

Why a tower? You get better pressure from a pump and it's way less effort and expense.

[evenstevens]

15 minutes ago, canuckamuck said:

Why a tower? You get better pressure from a pump and it's way less effort and expense.

 

 ^^^^^very simple ,its a dry as a bone ,on his plot of dirt

very curley one to give a satifistory answer, but a full box and dice job with one contractor,would be  E/S   course to the winning post

you will be looking up to  500.000 baht,   hole in your wallett, mind you a ball park figure, with full guarantee that  you are provided with  very good flow of water

  cobber,  wish u the very best of luck,  u will need it, but sit back and suck on  your thumb,before deciding which course to take

 

its  a  U2  good evening to all readers

[Doisaketdreamer]

The property has plentiful water above and below ground (two wells in place on 7 rai of land). I now have two quotes; the first for 95,000 and the second for 135,00 to do entire job including materials, pump etc.

[Dante99]

23 minutes ago, Doisaketdreamer said:

The property has plentiful water above and below ground (two wells in place on 7 rai of land). I now have two quotes; the first for 95,000 and the second for 135,00 to do entire job including materials, pump etc.

check the specs on the quotes carefully, they are probably not the same making it difficult to compare

 

I'd choose the stronger steel and check it carefully by weighing it before fabrication.  There are different grades/weights in the same nominal size.

[evenstevens]

On 7 กันยายน 2559 at 8:41 PM, canuckamuck said:

Why a tower? You get better pressure from a pump and it's way less effort and expense.

 

canuck is on the money if property has plentiful water no  need for  tower  put the tank on the ground and use a pressure pump

 

its a  Hangout   good morning to all my readers

[mcm991]

If the purpose of the tower is to create water pressure by gravity, then you are almost always better off going for a pump instead.

 

You'll get 1 bar of pressure for every 10m up your tank is .... and that does not take into account any losses due to pipe bends etc ...... for most westerners .... 1.2 bar is the minimum for a comfortable shower. Almost impossible to achieve in reality.

 

Good luck.

[Dante99]

Pumps provide no water pressure unless there is electricity to run them.

 

Some locations particularly rural, electrical outages are still a problem in Thailand.  So there remain valid reasons of towers.

 

A ground level tank is a two pump system, one from the well to the tank and a second from the tank to the house.  A tower is a one pump system.

[Doisaketdreamer]

Thanks guys. The ground tank and pressure pump are appealing. And yes, the Doi Saket area has frequent power outages. Most of them are from a few seconds to an hour in duration. I will be installing 60 solar panels as well. Perhaps I can set it up so the water pump gets priority from the panels.

[evenstevens]

if electricity is O.K., a pressure pump is  a  LOT , LOT  cheaper  than a tower,  and surely the most sensible  solution

 

[mcm991]

I accept that pumps need electricity to run ...... but I think I small petrol generator is still cheaper than a water tower. (for those times that the electricity has failed)

 

The size of the pump is determined by the demand of the house and maximum head height of the highest tap / shower.

 

Most single family houses in Thailand can easily be happy with a single 250W or 350W constant pressure pump. But of course that is a broad generalization. All the pump manufacturers have brochures with a usage chart on them. 

 

Given that most power outages in my area happen during rain storms, using solar to power the pump may be best if you use a battery storage system .... as the sun is usually too weak to power a pump through an inverter alone during a storm.

[Dante99]

15 minutes ago, Doisaketdreamer said:

Thanks guys. The ground tank and pressure pump are appealing. And yes, the Doi Saket area has frequent power outages. Most of them are from a few seconds to an hour in duration. I will be installing 60 solar panels as well. Perhaps I can set it up so the water pump gets priority from the panels.

You can get a pump with a very large separate pressure tank that would give you some supply during electrical outages.  Doi Saket is not that bad for electrical service.

[4evermaat]

do pumps come with their own bypass switch in case of power outage so that you can still get gravity-fed water pressure?

 

Or do you have to build your own bypass (a 3 way valve prior to pump inlet with pvc pipe that goes around the pump)?

 

If a gas generator was used as a backup, is it to the main house breaker, or exclusively to the pump?  Is it set to switch over to gas generator as soon as electric is below a certain threshold?

[Bill97]

You probably have to make a manual bypass, it is the usual way.

[Sandy Freckle]

Backup fuel powered pumps are very useful in my experience(albeit in Australia) in case of fire and no electricity and other tasks.. Yes, I know fire may not be such a potential issue here.., but sometimes that extra pressure can also be useful in clearing leaves out of gutters, cleaning mud from under cars...., maybe even discouraging soi dogs n kids(kidding) etc etc.

Edited September 19, 2016 by Sandy Freckle

[mcm991]

22 hours ago, 4evermaat said:

do pumps come with their own bypass switch in case of power outage so that you can still get gravity-fed water pressure?

 

Or do you have to build your own bypass (a 3 way valve prior to pump inlet with pvc pipe that goes around the pump)?

 

If a gas generator was used as a backup, is it to the main house breaker, or exclusively to the pump?  Is it set to switch over to gas generator as soon as electric is below a certain threshold?

 

Truth is that you don't really need to make a bypass at all .... the water will flow through the pump quite well without power. You may gain a little extra flow by creating the bypass but I would test it first without. Just unplug the pump and see what happens when you open a tap somewhere .... it may be sufficient.

 

The easiest way to use a backup gas powered generator with the pump is just to unplug the pump from the mains and plug it in the generator. I assume that you will be using a portable petrol powered generator.

 

You can get fancy if you want to spend big bucks ... get a proper diesel genset that can wire directly into the mains with an Auto Transfer Switch ..... and then you don't have to worry about the power going out at all. But I would caution that this needs to be done by a specialist company who knows what they are doing (not necessarily the same thing in the country) and you are into real money.

[Sandy Freckle]

2 hours ago, mcm991 said:

 

Truth is that you don't really need to make a bypass at all .... the water will flow through the pump quite well without power. You may gain a little extra flow by creating the bypass but I would test it first without. Just unplug the pump and see what happens when you open a tap somewhere .... it may be sufficient.

 

The easiest way to use a backup gas powered generator with the pump is just to unplug the pump from the mains and plug it in the generator. I assume that you will be using a portable petrol powered generator.

 

You can get fancy if you want to spend big bucks ... get a proper diesel genset that can wire directly into the mains with an Auto Transfer Switch ..... and then you don't have to worry about the power going out at all. But I would caution that this needs to be done by a specialist company who knows what they are doing (not necessarily the same thing in the country) and you are into real money.

Yes thats correct..., the impeller should still spin with just the water force from the tanks 'head'.
If it's the same stand as in your picture, you should have a very nice amount of pressure.
Good on you.

Edited September 19, 2016 by Sandy Freckle

[Bill97]

Yes but with a simple bypass you can pull the pump for repairs and still have house water.

Pressure from the tank thru the pump will be a dribble in the house. City mains much better.

[canuckamuck]

Yes a bypass with a foot valve so you don't send water back to where you got it.

 

Also not all pumps allow water through when not turning. Mine doesn't.