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I love this system. We have two cottages on Gambier Island, Howe Sound B.C.. We depend on ground water runoff, run to tanks. The water tests came back perfect after the system was installed. My only wish is that the ultraviolet bulb was LED so it would not consume much power. We have small solar systems.

Sometimes over period of non-use the UV lamp heats up the water in the UV chamber. Simply flush a toilet first thing in the morning before using the water in the sink or showers.

Although we do not generally recommend horizontal installation, it can be done if there is no other way. There are 2 limitations with horizontal installation. First, it is not easy to drain the unit to winterize it and secondly you will have to be more careful when removing the dome for cleaning as chances of breaking it are greater (broken domes are not under warranty).

Use only GENUINE Rainfresh UV lamps :  Use only GENUINE RAINFRESH UV Lamps with your UV system. Rainfresh UV lamps are designed with extensive product research and engineering to provide reliable and consistent UV output and performance that ensures the safety of your drinking water. Using non-Rainfresh UV lamps can not only compromise the system performance but also voids the electrical and CSA certification on the product  and may result in unsafe drinking water, ballast failure or even an electrical fire.  Use of non Rainfresh lamps will void warranty & product certification

If your water comes from a private well or lake and you worry about the microbiological safety of the water, Rainfresh MEGA whole house UV system could be the solution that you have been looking for.

Yes the UV light stays ON all the time, even when you don’t need the water (e.g. during the night). Repeated ON/OFF actually shortens the UV lamp life. However, if you are going away from the house for a week or so, you can turn the UV system OFF. In this case first turn OFF the supply valve before the UV and then turn the UV off. Upon return, first turn the UV system ON, wait for about 10 minutes and then flush the water for a few minutes prior to consumption

Rainfresh UV systems have one UV lamp that lasts 9,000 hours of use (approx 1 year), after which it must be replaced even though it may continue to light. This is because after 9,000 hours the ability of the UV lamp to kill bacteria drops below safe limits and can thus compromise your family’s health.

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Rainfresh MEGA whole house UV system is an advanced whole house water purification system designed to provide clean and safe drinking water for home and cottage use.

Q Does a UV light consume a lot of energy? No, a UV system consumes only 28 – 63 Watts, depending upon the model. This is as much or less than a 60W bulb.

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Yes. Rainfresh UV systems are designed to be used on water from any source. However, tannin, organic colour etc can significantly reduce the efficiency of the UV system and may require additional pre-treatment. Send us a sample of your water (see link at the bottom of the page) for a free water quality report.

Hardness < 7.0 gpg (120 ppm); Iron < 0.3 ppm; Manganese < 0.05 ppm; Turbidity < 1 NTU, Tannins/Colour: None; UV Transmissivity > 85%

while reconnecting ballast to electrical outlet and keep the button depressed until the ballast emits a solid three-second beep. This will re-set the lamp-change-timer to zero and the 3-second beep will confirm that the re-set was successful.

Rainfresh MEGA whole house UV system is an advanced whole house water purification system designed to provide clean and safe drinking water for home and cottage use.

NOTE : It is not possible to reset the lamp-change-timer unless the timer is in the grace period or lamp-change alarm mode or lamp-failure mode.

If any of these parameters in your water are outside the limits, you may need additional filtration. Please contact Rainfresh for help.

Rainfresh MEGA whole house UV system disinfects water by using the natural, non-chemical disinfection properties of ultraviolet light (UV for short). UV light inactivates bacteria, coliform bacteria (e.g. E. coli), viruses, parasitic cysts and other microorganisms using a germicidal wavelength of 254 nm & a UV dose of >40 mJ/cm², making the water safe to drink from virtually any potable source.

You can send a sample of your water to our test lab for a no-charge analysis of your water. The link to details on how to send the sample is at the bottom of the UV information page. Our lab can test for hardness, iron, UV transmissivity, pH, Turbidity and Total Dissolved Solids

It is recommended that you continue to monitor your water safety through regular testing at least 2-3 times a year, even though you have a UV system.

You should never install the UV on the same circuit as the pump as that can destroy the ballast. The UV should be installed on a dedicated circuit only.

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Yes. You should never install the UV without a surge protector. A CSA or UL certified surge protector rated for a clamping voltage of less than 400 Volts, response time of less than one nanosecond, and energy absorption of at least 1,000 Joules.

Rainfresh UV systems use chemical-free and environmentally responsible technology that does not require use of any chemicals. UV systems do not alter the water quality, other than disinfection.

No. UV systems should always be installed as the LAST stage before water gets divided into hot and cold. Never install a UV before any storage tank.

The UV lamp degrades over time and after 9000 hours (approx 1 year) of use, its killing ability drops to levels that are considered unsafe. Therefore the UV lamp must be replaced once a year even though the UV lamp continues to lights up.

If the beeping is intermittent with the green LED ON and a flashing red LED, then it is a lamp-replacement alarm. You can silence this alarm for 7 days by pressing the black button on the ballast. Install a new lamp as soon as possible and reset the timer (instructions are included with the lamp).

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UV disinfection is used by many municipalities across the world including North America for primary disinfection of water. It has multiple advantages over conventional chemical disinfection methods, such as:

Rainfresh UV systems have a built-in alarm feature that signals end of lamp life by a flashing red LED and an intermittent beep. You can silence the alarm for 1 week three times to allow yourself time to purchase and install a new lamp. After that, the alarm cannot be shut off until the lamp is replaced.

You should routinely check the quartz dome and clean if scale has formed. The dome should also be replaced every 3 years. Also replace sediment filters regularly.

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You can buy these at various retail outlets such as Home Hardware, Lowe’s etc or order some of these systems directly from Rainfresh. Click on the “online store” link at the top of the page to order direct

To make sure that the water flow rate never exceeds the rated flow of the UV unit, you can purchase Rainfresh flow control kits that can be easily attached inline before the UV without solder. Please contact customer service for these flow control kits.

Yes the UV system will make the water safe to drink from a microbiological safety point. You no longer will need to buy bottles and jugs to have safe drinking water in your home.

Rainfresh residential UV systems are tested and certified by CSA International to CSA B483.1 for material safety and structural integrity. They are also independently tested for microbiological inactivation and tested to deliver > 40mJ/cm2 UV dose at end of lamp life. This is higher than most other UV systems that rate their “kill dose” at only 30 mJ/cm2 or even less. Rainfresh also manufactures UV systems certified to NSF/ANSI Std 55A. Please click on the link at the top of the UV page for more info on these systems.

Have more questions? Enter you own question below and our customer service will get back to you within 24 hours. Name* Email* Phone*Product* MessageCAPTCHA

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MEGA8 incorporates a sophisticated filter design that provides clean, great tasting & microbiologically safe drinking water.

MEGA8 incorporates a sophisticated filter design that provides clean, great tasting & microbiologically safe drinking water.

Rainfresh MEGA whole house UV system are made in CANADA and manufactured to the highest performance and quality standards.

The Rainfresh UV system consists of a low-pressure UV lamp enclosed in a transparent quartz dome, housed in a stainless steel disinfection chamber. As untreated water enters the chamber from one end, microorganisms like bacteria, viruses, cysts etc in the water are exposed to ultraviolet light being emitted by the UV lamp. The UV light kills/inactivates these microorganisms instantaneously and treated water flows out of the chamber and is ready for consumption.

UV systems disinfect water by inactivating bacteria, coliform (such as E. coli), viruses etc. UVC light at a wavelength of 254nm disrupts the DNA of microorganisms preventing them from multiplying. This makes water safe to drink from virtually any potable source.

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Use only GENUINE RAINFRESH UV Lamps with your UV system. Rainfresh UV lamps are designed with extensive product research and engineering to provide reliable and consistent UV output and performance that ensures the safety of your drinking water. Using non-Rainfresh UV lamps can not only compromise the system performance but also voids the electrical and CSA certification on the product  and may result in any one or more of the following issues:

If the power to the UV goes beyond its operating limits, the ballast will shut down to protect itself from unsafe power. To correct the problem, simply unplug the unit, wait for 15 seconds and re-plug it.

The beauty of the system is that it can be oriented to suit piping from left to right or right to left, making installation a breeze in all situations.

All models are based on the max water flow at which the UV system can disinfect the water. While water flow rate depends on your pump capacity and pipe size, as a rule of thumb, you can select the UV system based on the number of bathrooms as follows