Suggestion Drill deep bore well amlan amlan amlan

Hello again

planning to drill a deep bore well for the house ( will be 2 inch diameter), planning a 3 wire 2 inch submersible pump

a few years ago, we gave a little land to the LGU so they could drill a well for the locals, which gives plenty of clean water (125 feet deep, with 4 inch diameter), hand pump

so we will drill close to that so i am guessing we will hit water around the same depth. will purchase the pump from the USA,

what are the things i should be looking out for ?????

local driller here will go 10 feet for 5,000 pesos (acceptable, he drilled a well in bios for us, did a good job)

anyone can recommend some one to hook up the pump, ( with the chord, one inch pvc pipe and connection to finish (maybe 2 hp pump)

any advice on how to get the water from the tank (will have to erect a tank of course) one of those steel ones in the hardware stores other than a little off tank water pump

any opinions on the pump, would it have to be submersible as im guessing the minimum drill will be 125 feet

any ideas, suggestions, ideas, options or indeed contractors to do this

if you have family members, who you could recommend, to do any of the work involved

salamat

 

sorry

not drilling in the true sense, but local style, with the tripod and heavy weight, boing boing, see below

"They used a big bamboo tripod, thick rope(probably nicked off a boat), block & tackle, with a bl**dy big old iron drive weight/guide,"

 

Just about finished our project. Our local contractor charged P90k for the lot. The guy did a great job on our garden well - this one is on some land the wife owns and will supply resorts for profit and locals for cost. We bought the pipes, casings etc ourselves, I think a rough estimate arrived at about P30-40k for the lot. So a rough estimate arrives in your figures, as we hit the water table at 180 feet. Due to some unfathomable (ha ha) reason the contractor wanted to go down another 20ft. I trust him, so I agreed. So maybe we came in slightly less expensive. But as we live on Siquijor things are done within the family and as the baranguay will benefit the contractor was delighted that the foreigner was trying to make life easier for his relies in the baranguay.

Like you we are into submersible pumps. You are clearly avoiding Chinese made stuff peddled here, and so are we, importing from the UK with booster surface pumps etc. The tank will be 10m x 10m x 4m - we figure given all the limitations we will service 6 small resorts, keep locals in water and maybe have lots to spare. There doesn't seem to be any shortage of folks asking us to supply them. This years Drought has been really tough here. Submersible pumps are not easy to extract if they break down, so I have one on a 5 year warranty. The bit to look out for is that if you compromise this toward a surface jet pump you will get water, albeit at lower water volume. But jet pumps are easily fixed/replaced. If there are wells nearby using submersible pumps they will 'trump' a jet pump, sucking water away from your surface pump.

In terms of borehole specs, we had a 5" borehole, 4" and 3" casings for a 3" submersible pump. The bit I can contribute is that Polaris in town (Dumaguete) will charge P20k for their bod to come out to fit your pump if you are short on the know how - and I am very short on that!

The drilling was expected to take 2-3 months, but as everyone was hopping up and down excitedly 2 weeks into the project as the earth/stone lifted was wet and not too compacted, they predicted water very soon. They were right, they hit the first water table at 160feet after a month. They finished the drilling 2 weeks later. The contractor is doing the well cleaning with a hired compressor tomorrow.

If you need to know anything more, pm me, I'll ask the less technically challenged, and feedback to you.

cheers,

C

 

Just a further thought, is water pressure important? If so, a booster surface pump can address that rather than a large surface tank. Our house well (jet) pumps water and fills a ground based tank on a slight elevation. It won't power a power shower, but one or two taps seem to suit the house and staff for their needs. They just carry buckets short distances for washing up, washing etc. A pipe from the tank to just outside the dirty kitchen seems to work well. The CR has running water, there is a lot to be said for the Filipino bucket n scoop method for personal hygiene, bathing etc. I'd advise you to think again about investing in a large tank for the sake of water pressure. Depends on your budget I suppose.

All the best,

C

 

Well it is the Philippines and nothing moves that quickly. It's even started to rain so with any luck the water shortage will be over soon. In the meanwhile success at the water well. We lifted 871 jerry cans the day before yesterday after the well cleaning with the aid of a jet pump - and the water showed no signs of ending. The pressure didn't drop at all. The submersible pump will be with us in a few weeks. Next job is building a tank and ploughing through the paperwork that comes when you want to do something positive around these parts.

I've uploaded a couple of shots showing the well's results.

C

 

Selecting a deep well pump is not so difficult once you know the head (height of the water column) and water volume requirement. That's all you would consider in the US or Europe.
Here periods of low voltage need to be considered.
I was discussing this with Perry Loo at Polaris last week. He said they could marry a 1hp impeller to a 1.5 hp motor which would allow the pump to function without overheating if the supply voltage is low.
You might want to check the voltage at your place before spending a lot of money on a pump.

 

Hi Cerne,

Read your article regarding your garden well. Would you be kind to share the driller? I plan to drill a well in Timbao, Bacong. Thanks.

 

I am planning to get a water well 'drilled' (hammered) in Bantayan area of Dumaguete and expecting to need to go down to 120' or so. Preference would be for submersible pump, but I am hoping to find a pump I can hook up to a Solar power source. The water well contractor has estimated that a submersible pump that can work from Solar power will cost significantly more than the cost of a 'normal' pump. Has anyone tried this?

 

Lol, becoming the water well expert so it seems. Nope Merlin should not make a difference. I'm no expert or techie but solar should save you money on your pump in the longer term. It will be more expensive sure to set up the solar system (hey you gotta buy the gear which will cost) but once installed your electricity bill drops.

In my very limited understanding of such things your solar set up converts sunlight to a/current. Which is the same thing as plugging in your kettle, turning on your tv etc. Any submersible pump can access your solar energy. It's the solar energy you convert, not the pump.

I haven't done this yet, but am planning to do so toward the end of summer this year. I met a Filipino dude on the ferry over to Duma a couple of weeks ago from Maria. He seemed to be one or two steps ahead of me and told me he was running a 1.5hp submersible pump and x2 .5hp booster pumps off his solar set up. He seemed pretty happy about NOT paying the Prosielco every month. The kilowattage and specs caused a major furrowing of my brow (it's beyond me, but I'm shrink, not an engineer so forgive me). When it comes to the investment I'll take the recommendations offered here and shop around. I'm convinced that solar will save me pesos in the longer term, so I'm prepared to sink a few into a solar system for the well and the house.

Cheers,

C

PS haven't forgotten you Oding. The good lady is tracking our man down. Seems he is in Plaridel for the next couple of weeks visiting 'family'