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Pristine Water Systems FAQ

Some common questions to get you started.

The answers to many commonly asked questions can be found in our blogs.


Current topics include:

Where should the UV system be installed in the plumbing line?

UV treatment systems should be located before the hot water heater, but after any other treatment system such as filters or softeners.

Does the unit need to be hung in a certain direction?

The unit can be hung horizontal or vertical with the port facing any direction.

Which end is the inlet/outlet?

Either end can be designated as inlet/outlet.

Does the bulb need to be handled a certain way?

Yes, hold the bulb carefully by the ceramic ends since it is fragile and fingerprints on the glass should be minimized. Never look directly at a lit ultraviolet light.


What is the warranty on my ultraviolet unit?

For full warranty information, please see the back page of your manual. To summarize, the chamber has a 5 year warranty; the ballast and all other components have a 1 year warranty. When calling for a unit or ballast warranty, please have the product's serial number ready. The serial number is located on a white sticker containing a bar code. 

Is any maintenance required?

The UV bulb needs to be replaced annually and the quartz sleeve may need cleaned occasionally depending upon the quality of the incoming water. Detailed instructions for both can be found in blog posts "How Do I Replace My UV Bulb?" and "How Do I Clean My Quartz Sleeve?"

Do you carry any other bulbs/quartz sleeves that are not listed on the products page?

Yes, we carry 12 bulb models and 7 quartz sleeve models. We will need the length of your quartz sleeve or the length of your bulb from ceramic end to ceramic end, excluding the pins. Please call us at 410-827-8885.

How many watts is my ultraviolet light bulb?

The PMSGPH457/4P is 25 watts. The PMSGPH515/4P is 24 watts. The PMSGPH810/4P is 38 watts.

How much does a UV water treatment system cost?

Our complete systems start at $356. All of our prices can be found on our UV products page. Discounts are available for plumbers.

How long will it take to ship my order?​

We ship all orders in 1-2 business days via UPS Ground. We will make you aware of any delays.

Can I purchase an audible ballast?

We do not sell audible ballasts at this time. When we are able to find a reliable, audible ballast, we will add it to our products page.

If your question has not been answered here, please call us at 410-827-8885.

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