Cleaning a Solar Water Heater Tubes and Tank 🌞 

You are very welcome

I suggest you to use non-weld tank to solve this issues.

Install the filters

It all depends where you live if there is a lot of soft rock like lime close by then yes but if live in area with a lot of hard rock like granite then probably not.

In theory yes if you can find a pure magnesium rod without a plastic or steel attachment cap. Never cut magnesium with a grinder blade or a saw blade as it is highly flammable. Good luck!

It is best to use pure white vinegar or for every litre of white vinegar mix with 4 tablespoons of sodium bicarbonate. If it is diluted with water it will work but will take longer to free the scale / hardened minerals what with being less concentrated.

@@brieftodo Thank you

Yes, the majority of shops that sell solar water heaters also sell the replacement tubes, seals and magnesium rods

@@brieftodo Cool sir thanks u for the information

Yes it is an open water system / gravity fed, the scale accumulates mainly in the base of every tube and in the base of the tank.

Thank you 😊 so much for this video. Please upload more videos on solar water heater maintenance. Thank you.

Yes, do you need a solar water heater over there

@@brieftodo How does the water circulate through the tubes? With the tubes closed on the bottom end, is the heat transfer done just from a thermosiphon action within each tube? How does this compare with ones that use heat pipes for doing the heat exchange?

To remove lime scale you need to dissolve it by using a solution of one litre of white vinegar mixed with four table spoons of sodium bicarbonate which should be added slowly in a well ventilated area. On the tank close the drain valve and fill it by pouring the solution via one of the tube holes. If the tubes contain lime scale put them in the shade standing vertically with some form of support and cushioned at the base then fill the tube(s) with the above solution. The lime scale should dissolve within an hour then rinse the tank and tubes well with water before reassembly.

aliexpress online if you can´t find them in your own country

@@brieftodo thank u sir

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It all depends where you are in the world for example in Mexico $80-120 USD or in the USA $200-300 USD

No but there are lots of stores selling them and the parts.

@@brieftodo Hello, I'm a Chinese manufacturer of solar water heater. I'm looking for a partner. Can I contact you

Only top end water softeners would cut it and they aren't exactly cheap, in Mexico a 250 litre gravity fed solar water heater only costs around $400 USD (2021). Plus solar water heaters need the silicon seals to be changed every 2-3 years so I now do that (in my other video) at the same time as cleaning the tubes and the tank.

Can you upload one correctly depicting the procedure and suitable for Indian system?