Water Distiller Quick Fixes

Written by William Fryer - MA Oxon

As with all devices there are often things you can do to extend the life of the machine or simply make life easier. This is our list of things you can do to get the best out of your Megahome Water Distiller.

1. Do a physical clean after each distillation

Hard water leaves white scale inside the distiller. Most people in the UK live in a hard water area. If you do not tackle it the scale builds up and it can damage the distiller. In fact if the scale is very thick the heat from the heating element cannot adequately get through and the machine can overheat. If we ever get bases returned under warranty they almost always have a massive amount of scale on them. So clean your distiller regularly, the cleaning crystals will dissolve any scale present in the distiller. And you can reduce the amount of cleaner you use by physically cleaning the distiller after each distillation. To do this put a bit of water in the bottom and use a non-stick scouring pad to physically clean out the distiller. Doing this will reduce the amount of cleaner you use.

2. Proof the stainless steel on the head unit

Crazy but true, stainless steel does actually stain, it’s just designed not to rust. Very often the metal in the head unit can get stained a dark colour with contaminants from your water. You can clean this off using a non-stick scourer but it is hard work. You can avoid this entirely by proofing the steel by rubbing in some light vegetable oil and wiping off any excess. When you have done it, it should not feel oily, if it does get a cloth and wipe off a bit more of the oil. You are just aiming to wipe it on and then polish it off.

3. Keep it on the counter top

If distillers ever come back to us it is either the base of the head unit. Generally bases fail when they don't get cleaned, head units fail when they overheat. Your distiller has to work hard to get rid of the heat required to cool 4 litres of water/steam. It is a lot of heat. It needs to be in an open space like a kitchen to achieve this. Sometimes people put them in cupboards and when they do the motor unit overheats and can fail.

4. Switch it on and off each time or unplug it

One of the quirks of the Megahome distiller is that it likes to be turned off after each distillation, this is part of its reset procedure for the next distillation. When you are cleaning it out unplug it or switch it off using the switch on the back of the machine.

5. Don't get too hung up on TDS

TDS is Total Dissolved Solids. It measures the amount of contamination in the water. Most tap water in the UK is 250-500 ppm TDS. Most of the time your distiller will produce water that is 0-20. We often get calls with people worried that their TDS reading is 3 after distillation. In reality the water is exceptionally pure and without very expensive analysis and investigation it is very hard to say where that contamination has come from. It could be from tap water used to rinse out the jug or from manual contamination. It is impossible to say. Anything below 20ppm on a TDS meter should not be cause for concern.

6. How to use the distiller cleaner?


Your distiller comes with a pack of cleaning crystals. Essentially this is pharmacology grade citric acid - so it is nothing nasty. To clean the distiller, fill with water and put in two table spoons of cleaning crystals. Then turn on the distiller but leave the head unit off the distiller (do not plug in either). So you should end up with a full distiller of water that is heating up. Put a timer on for about 30 minutes because it is easy to forget. At the end of this period come back and see how clean the distiller is, if it is very encrusted it might need more cleaning crystals.