Water Sterliser advice needed

I always thought that using Milton to sterilise the water system could corrode the water heater.  I understand Trauma advise against its use.  I  use Puriclean at the start of the season.  

We tend to use Puriclean.  It's custom made for the job and will not have adverse effects on the water heater/ system.  Not that expensive to buy, so I would use the item made for the job... it's available in powder or tablet form.

David 

Our inboard water tank holds up to 120 lires (about 4-6 days supply) and I don't fancy drinking from that after it has sat around in 25-30 degree heat.

We use a Britta filter jug for cooking/drinking water topped up from a 5 litre water container which is replenished daily.  The supply in the tank is really only used for washing, showering and washing up.

If we're not going away again in the near future, I empty our water tank completely when we get home, although I try to time it so that the tank is almost empty for the return journey.

My advice is to get a tub of Puriclean and see how you get on with it. Once a normal year is usually sufficient if you are drawing water from safe sources such as CMC sites. If you regularly use the van throughout the year, you may not need to do anything. Don't leave the water in the tank or pipes for more than four days, less if in hot weather and drain the tank when you get home (see JimE above).

If Milton is not used correctly, neat/strong it can overtime damage any metal parts such as in the heater. Sufficiently diluted, and I used it for many years, Milton was fine. I changed to Puriclean because it was easier to buy and less risky.

I did mine yesterday. I certainly don't drain down between trips. It sits on the drive with whatever volume it has in it. Never had a problem with the yacht's tanks either and the water tended to sit in that for a lot longer before use than the motorhome. Happiness is full tanks. 

Puriclean contains a considerable amount of chlorine which can damage some parts of the system particularly Alde.  Flushing after use is very important.

I made the mistake of cleansing the freshwater tank in our first MH with Milton and regretted it.The water tasted of TCP thereafter-we do not drink from the tank supply but it made teeth cleaning unpleasant.Since then I have stuck to Puriclean with no problems resulting.I do occasionally flush the tank out to remove sandy sediments-these seem to get into the tank after trips abroad.Do they use sand filtration more on the Continent?

Your heating system is completely   separate to any drinking water .

it is impossible to mix the two. 
so using Milton cannot therefore hurt your heating system . On another point it is very important that the cleaning of your water system tanks takes place if you intend to use it for drinking or washing .

I drain our water before the first frost,then refill at home when frosts have finished.I then keep it topped up through the summer.I have never put any cleaner in it and we drink it direct from the tap.Had the van 14yrs and never had a problem,if it aint broke dont fix it. We are from a time before elf & safety so maybe immune to most things.Happy touring.

 Does that mean that the water in your tank has been sat there For the last month or more, without being changed? I certainly would want to be drinking it now.