MMmmmm , rather be posh than grow an eleventh toe thank you very much. Warning came over the mic. in village the other day urging people not to swim in the canal or river , something about a slight toxic spill up the road....... (nuclear power stations)
Just another point to make , farmers are pesticide happy over here. No problem , as long as is does not rain and all the pesticide does not run down the the river or canal.....

It WILL make you pool go green, no matter how-much chlorine or stuff you add. It will smell funky in your cisterna but it WILL make your spuds grow like a bat out of hell!!!!

For the sake of keeping a family healthy and and protecting my unborn boy  and wife , I will rather pay the extra money, or do without!!    :)