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Thread: RAIN4

  1. #11
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    Another new photo of the RAIN4 in position on the adjustable pole mount. Water is fed into the gray 3/4 inch hose barb at the bottom, or, the barb can be removed and a 3/4 inch hard pipe used instead. Also included is a 3/4 to 1 inch adapter for 1 inch hard pipe.


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  2. #12
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    Here is a look inside the RAIN4 dome lid, with all 6 of the GEM5® lights plugged in. The photo had to be dimmed (edited) because the lights are blinding bright 660nm deep reds, and put out 5 watts each (30 watts total), which is almost all illumination because the power supply boxes are safely a far distance away (see www.LEDsafety.org) and do not add any extra heat at all to the scrubber.

    Other people's lights, such as the common bolt-on ones from China, have the power supply inside the light, and this makes the lights 60 or 80 watts of heat each, but this is just power supply heat and not illumination, and so the scrubber gets very hot (120 to 300 watts of heat) which makes your sump area a warm swamp.

    When a RAIN2 or RAIN4 is new, you only plug in 1 light because they are so bright...

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  3. #13
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    Customer's RAIN4 waterfall scrubber, set way down in a saltwater sump, almost touching the waterline. Since the six GEM5 lights inside the dome lid can operate submerged, any water spray or water level increases (like turning the return pump off), no harm is done to the lights. And if the RAIN tray touches the waterline, it is dead silent with no water drain sound at all.

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  4. #14
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    RAIN4 in sump of 20000 Leagues Under The Sea Tank
    https://youtu.be/qaZuRPu6UPk?t=736

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  5. #15
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  6. #16
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    One-handed removal of a Green-Grabber® screen from the RAIN2 and RAIN4 (tm) scrubber.

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  7. #17
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    This RAIN4 screen has a giant growth ring which protects the center section from light-blocking and flow-blocking that often happens otherwise (see http://algaescrubber.net/forums/show...3-Growth-Rings )

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  8. #18
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    All other waterfall algae scrubber designs (which we created in 2008; see Ats2008.org) require you to disconnect and disassemble the unit to get to the growth on the bottom tray. This was a problem. The RAIN2 and RAIN4, which we created to solve this issue, allow you to lift off the LED dome lid with one hand so you can observe any growth on the tray, and then you can lift the tray off of the water pipe also with one hand (as shown) to take it to your sink. And you never have to turn off the water flow when doing this.

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