Here is a diagram showing three different Santa Monica Filtration waterfall versions available for DIY or manufacturing. The first waterfall version on the left is the "standard" one I designed in 2008 and donated as free open source to the public domain for others to build; you can see one of the original 2008 forum postings at www.ats2008.org .
This is the version that most people use to manufacture/sell because it is free open source, and it works good as long as safe low-voltage (such as 12V) lights are used; see my LEDsafety.org post. The obvious open-source feature of this version is the water pipe coming from the side of the box, going over the top of the box; it does not go through the bottom of the box like the RAIN.
The second waterfall version in the middle is the overflowing SLIP tray version, which is described in the patent application below, and which has been on-sale in the SLIP.7 model since 2020. The SLIP.7 is a very small example of this design, but it can be built any size that is needed; size does not change it's function.
The main feature of this version is the "reservoir compartment" or "water outlet structure" that is the SLIP.7 tray. It removes the overhead water pipe, and allows the screen to be pulled up without disconnecting any pipes, or turning off the water. This version is available for manufacturers to license to build, sell, or import in the U.S.
The third version on the right is a round version of the SLIP tray, which operates the same except that it fits easily into standard round acrylic tubes such as for skimmers, reactors, etc. This version is also available for manufacturers to license to build, sell, or import in the U.S.
Licenses are according to these soon-to-be-filed patent claims:
http://algaescrubber.net/forums/sho...gn-for-licensing&p=41976&viewfull=1#post41976
...which are a continuation of allowed U.S. patent application 16/848,779 which has a priority date of 2015, which is a continuation of U.S. patent 10,665,095:
http://www.algaescrubber.net/10655095smf.pdf
...not including the RAIN which has its own patents. All versions are available for DIY for home use, and many examples can be found on our forum at www.AlgaeScrubber.Net
