Prefilters for John Ellis Water Machine (4 or 5)

If you're running a John Ellis water machine, you know that one of the most tedious, challenging things about it is the gunk that builds up in both the boiling chamber and the cooling chamber (the main cooling chamber).

One easy way I've found to remedy this is by prefiltering the water before it goes into the John Ellis machine.

Now, the Electron 4 or 5 will ultimately distill the water so the end product will be the same.

But there are two benefits you get with a prefilter.

First, the gunk that you have to clean every so often will be a lot less. It can be a pain to chip away at all of those buildups that occur over time. The prefilter I recommend will cut down the gunk substantially. It won't eliminate it since there will still be minerals in the water but it will be a lot less. That means less frequent and less intense cleanings of your electron 4 or 5.

Secondly, if you are using the runoff water for other applications (such as pouring it in your well, septic, pond, garden, etc...) wouldn't you want that water to at least be free of as much contamination as possible? It seems silly to be pouring the energized water down a well when it still has all kinds of dissolved chemical contaminants in it. The prefilter I recommend will at least make the run-off water much more pure. It's basically the best non-RO filter you can get.

Fortunately you don't have to spend a ton to get a really good result from your prefilter. It's a fraction of what the Ellis machine costs. And it's the highest quality, with more NSF-Certifications for contaminant reduction than any other filters of its kind.

It's NSF-Certified to reduce all of the following:


  • Chlorine
  • Chloramines
  • Particulates
  • Taste and Odor
  • VOC's
  • Radon
  • Mercury
  • Lead
  • Asbestos
  • Chloradane
  • Cysts
  • MTBE
  • PCB
  • Toxaphene
  • Turbidity
  • Atenolol
  • Bisphenol A
  • Carbamazepine
  • DEET
  • Estrone
  • Ibuprofen
  • Linuron
  • Meprobamate
  • Metolachlor
  • Naproxen
  • Nonylphenol
  • Phenytoin
  • TCEP
  • TCPP
  • Trimethoprim


Bascially, it handles most things you'd be concerned about in your drinking water, all in one cartridge that has to be replaced annually. It's made in the USA and has a lifetime-warrantied, stainless steel housing. It's just a top-quality product that will really make life a lot easier with your John Ellis machine.

It's made by Multipure and you can buy it via the link below. The prices there are the cheapest anywhere because the company regulates pricing.


The setup I use is the Single Hose Diverter Countertop kit. Instead of diverting your faucet directly to your John Ellis machine, you can divert to the Multipure, and then drip directly from the Multipure faucet on top the filter (included in the Single-Hose Diverter Kit) into the cooling tank. That means you'll run your Ellis machine without the cooling fan top feature, which most users I talk to end up doing anyway. You could do an inline or undersink setup for the Multipure and with some handy skills, connect it into the inlet valve of the Ellis machine, but I think the countertop setup I described is much easier for most. 

Believe me, after years of personal experience, adding this prefilter will make your life with the Ellis machine much easier. Less intense and less frequent cleanings, and better energized runoff water. It makes it a lot better to use the runoff water for cooking (pasta, rice, soups, washing fruits and veggies, etc...) as well, since it's already well-filtered.

Feel free to call me (Joe Borowy) at 443-416-7565 if you have any questions about this setup. 

Full disclosure: I am an independent builder for Multipure (#424074) as well as a dealer for John Ellis products.