Our friend Jean Roger said she used old plastic milk bottles to make a simple solar shower. We have just tried this on our sailing holiday and it works brilliantly.
Fill some empty 2 litre plastic milk bottles with some clean water (clean enough to wash in at least). Leave these sitting around in the sun for a while. On the boat we filled them before we left port.
Pre-prepare some additional milk bottle container tops with holes in them. I drilled about 10 holes in each top to make a shower rose.
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When you want a shower (like when you have just got out of the salty ocean) change the standard top on your milk bottle to your one with holes. The bottle has a convenient handle and you can direct the water exactly where you want it. No need to suspend a heavy 10 or 20 litre solar shower or fiddle with an annoying plastic tap. No water is wasted as you have total control to direct water as you want it.
A two-litre bottle appeared to be enough to get wet, soap up, and wash off afterwards. If needed I reckon you could even add a bit of heated water if required. 🏕️
Images: ©2025 Graham Leslie
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