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Steve_S
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# Posted: 30 May 2015 08:14
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Good day again folks,
Progress is being made at the cabin, albeit slowly but steadily. Now that our pump is in and working (excellent milestone) I'm thinking on water filters & treatments.
I'd like to hear from fellow SC'ers about what you guys are doing for filtering & treating your water.
Background: Our well was cable drilled last fall to 240' and we have now installed a Grundfos SQ-5 & 44 gal pressure tank. At the moment I am running the pump with our Genny as the solar system will be installed end of June or July.
After 5 complete well flushes the water is clear, odourless and has no taste. Given that our well is deep in granite and the pump is at 220' we expected some sulfur and hardness. There is no detectable sulfur and the hardness level only time will tell. I'm shocking the well today and running another round of flushing. The water still needs to be Health Unit tested but it should be no problem, this has to wait till the well is fully flushed out again.
The area is mostly "rough country" and part Agricultural which is pastures in my immediate vicinity.
Filtering:
I have been looking at those Rainfresh Canister filters, 1 large particle and 1 fine particle filters to reduce any particulates coming in... The particulates will reduce significantly as the well is used and it's all flushed out... only drawback of cable drilling.
Do we need a UV Filter or should we even consider one ? I tend to take the "better safe than sorry approach".
How are they for power use ??
Is there an LED Option available yet on the market ???
The Rainfresh R519 UV system is one I am considering,
Total Power Consumption (incl. lamp) 27 Watt, Lamp Power (Watts) 25 Watt.
Reference: Rainfresh UV Filters
Thanks
Steve
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bldginsp
Member
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# Posted: 30 May 2015 09:42 - Edited by: bldginsp
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I'm no expert, but I did just put in a well at my place. My understanding is that so long as the well is deep enough that it's not pulling surface water, and you have a properly installed cap at the top of the casing (concrete to 25 ft) then your water will be clean and filtering for bio hazards is unnecessary. You may need to filter for minerals or particulates as you said. I respect your 'better safe than sorry' approach but I'd just follow local health dept advice. Water out of granite at 250 feet is probably some of the best you can get.
My well is at 400 feet pulling water out of volcanic lava and serpentine. A little iron but quite clean and tasty. They have not yet required me to dump chlorine into it and I won't unless forced. I will flush it once I have a pump and I won't drink it right away. I just can't see dumping a gallon of chlorine into the thing.
Those Grundfos variable voltage and amperage pumps are nice- use solar or generator. Expensive though.
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Steve_S
Member
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# Posted: 30 May 2015 15:00
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On the Grundfos SQ-5 it's a soft start 2-wire 110v unit and we put a meter on it during 1st run and they are not kidding when they say soft start, it ramps up slow and no spikes on draw. And man can it build up the pressure fast, plus it has the built in run0dry safeties unlike those add-on ones that mess up. Cost me $870 CAD for the pump with extended warranties.
The 6" casing is 2' above grade and inside the Pump House, 9 feet through sandy loam & glacial deposit and 20' into the granite with the seal kit and mortar as required under 2015 guidelines, even though they drilled it last fall.
The granite is veined red, with white & black banding through it, so pretty darned tough stuff. I haven't any worries about ground water or other getting into the well itself.
The shocking I am doing is not Retail Bleach. My driller gave me the Shock Pills and because we just put the pump, pipes & wires in it has to be shocked & flushed just to be certain... They're chlorine & something else but forget what he called it.
The E-Coli and other nasties can get in when handling the pump, lines etc so here you must shock the well post installing of the equipment. We shocked it after drilling and it sat over winter without flushing, then we installed pump & soft shocked again and the chlorine was gone after 2nd full flush.
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Gregjman
Member
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# Posted: 4 Jun 2015 19:01
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I am a service technician for a uv company. We don't deal with residential systems but I can tell you that all uv, say for crypto deactivation, is point of contact and you will be running every time you pump water. Uv leaves no residual disinfection in the water and is only there to destruct the reproductive potential of microorganisms in the water as they pass by the uv lamp and are treated with a "dose" of uv light.
Uv is mainly used as a secondary disinfection point to back up residual disinfection such as chlorine in municipal applications.
Consider your source water. Is it know to harbor dangerous microorganisms?
When the equipment is handled as you describe, shocking your well should take care of any worry you have without the power consumption of uv.
If you had a shallow well it may be something to look into if you wanted to be better safe than sorry.
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bobrok
Member
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# Posted: 7 Jun 2015 20:51
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This is interesting. Tell me, if I UV treat water while I'm pumping from the lake into my storage barrels will the UV treatment be retained while in storage?
I also filter and chlorinate while pumping.
tnx.
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Gregjman
Member
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# Posted: 12 Jun 2015 12:45
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Uv provides no residual disinfection. That is where your chorine comes in.
As dangerous "bugs" get treated with a dose of uv light the light renders them unable to reproduce.
Even municipal water companies that treat with uv still add residual chemical disinfection to their water supply as they need protection for the water after it leaves the treatment plant.
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