On Sun, 25 Jul 2004 19:32:24 +0100, Grunff wrote:

David W.E. Roberts wrote:

We were quite taken with the idea until we discovered that it is filled then
chemicals are added to stop the water going manky - so you are tubbing in a
chemical stew (much like a swimming pool).

Nah, 'chemicals' aren't so bad. Really depends what you're putting in
and how much. Also, if you're really fussy, you could go for a filter/UV
arrangement, with no chemical treatment.

You should have a filter anyway - cartridge works best with a small
water volume.

As to chemicals, beware those with a chlorine/bromine base - Aquatabs I
think was the brand I started with. They are marketed specifically for
hot tubs and spas coz the bromine is more stable at the higher
temperature (nominally 40ºC for a spa) but some people can have skin
problems with bromine - me for instance! I stoppeed using the spa for a
week and the rashes went! I now use Bayroklar Spa. It's a two part
treatment, a capful of liquid once a week and one or two tablets daily,
although after the first few days, I drop back to one tab every two or
three days. The water stays nice and clear and largely free from foam.