well water help!

[Andy CWS]

I've told you repeatedly what I know but yes, the EPA sets the standards the UV light manufacturers must abide by. None of the links you posted are from UV light manufacturers. The NSF does not test/certify ALL UV lights, and you know that.

I didn't say that all UVs were tested by NSF, that's my point. And yes, I would like to see where it says ALL UVs MUST ABIDE by EPA standards.

I still don't any cerification or verification codes from the EPA. I do see them from the NSF. What certification process does the USEPA provide? For example, a number or code to look for (NSF has Standard 55, Class-A)? How would a consumer know that it has passed their testing or is a valid product to handle pathologically dangerous water? Who pays for this testing? Can you a send a link of a product that provides this information in their advertising?

Here are some links to major manufactures that state certification, level of mj/cm2, etc.
http://www.uvpure.com/pdf/Hallett30_SpecSheet.pdf
http://www.r-can.com/product.php?cat=1
http://trojanuv.com/en/images/Res/Tr...30brochure.pdf

Well, I can see we can go round-n-round, Gary. I will continue to recommend the higher quality equipment, especailly when it comes to safety.

That's enough for me. Take care and I wish your customers the best of luck.
Andy

[Gary Slusser]

I didn't say that all UVs were tested by NSF, that's my point. And yes, I would like to see where it says ALL UVs MUST ABIDE by EPA standards.

I will continue to recommend the higher quality equipment, especailly when it comes to safety.

But it isn't higher quality, all UV lights deactivate bacteria. And as usual you got into your salesman speak attempting to sell the most expensive UV by misleading everyone that only certified lights are the way to go. Here's a copy:
UV systems are designated by the National Sanitation Foundation (NSF) to Standard 55 as either Class-A or Class-B. Class-A systems to additional measures to assure water quality by requiring certain features that assure water quality. These can include, flow restrictors (for contact time), light intensity monitors (bulb function) and water quality (turbidity/clarity) sensors. If one of these features fails or reveals water quality problems, a solenoid shuts the systems down preventing contaminated water from coming through.

Does the NSF list or "designate" Class B lights; no they don't.

Facts, proven by some of your last links... All UV lights are flow controlled with flow restrictors etc., some UVs not listed or certified or "desginated by NSF have all the "certain features" you mention being "required" but aren't required. There is no such thing as (turbidity/clarfity) "sensors". And that all solenoid valves are optional. The last link I posted will tell you all about the EPA requirements.

And as we see at some of the manufacturer links you posted in your last post, not all lights are Class A or listed with NSF.

[Andy CWS]

There is no such thing as (turbidity/clarfity) "sensors". And that all solenoid valves are optional.

You are mistaken here, I'm afraid. Sensors that measure the condition of the water (clarity) as well as the intesity of the lamp are offered on some advance models. If the water becomes cloudy or turbid, the system shuts down. That is good information to know.

And as we see at some of the manufacturer links you posted in your last post, not all lights are Class A or listed with NSF.

Of course, they are designed for two types of water conditions, pathogenic and non-pathogenic water as describe in manufacturer's literature. I thought I made this clear but willing to go over it again for you.

Andy Christensen, CWS-II

[Gary Slusser]

I've sold UV lights with and without sensors and monitors under DEP requirements and not. Show us a URL etc. to a "clarity" sensor or monitor on a commonly sold/available UV light manufacturer other than Kinetico.

LOL... so now how does a Class B UV light justify it's existence, or purchase price, IF it is not to be used on pathogenic water!! What is it used for if not to control bacteria?

The EPA says all UV lights producing 16 mj/cm2 deactivates most types of "pathogenic and non-pathogenic water" bacteria found in water