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Thank you for the great forum, Safe Driving over the weekend. Sincerely Jason

NickM

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  1. Thanks Oli4, If I were to go the route I described, there would be a part of my domestic pipe network (2 toilets and a washing machine) that could be supplied by either rainwater or municipal - but it would be entirely isolated from the rest of the network via non return valves. So there would be no chance of rainwater ever making its way into drinking water, unless I decided to drink water out of the cistern. So far it's just my dog that likes to do that (OK technically the bowl). Basically the last few meters of the supply to 2 toilets and a washing machine would use the existing copper pipe, in an effort to avoid having an entirely parallel system. It would just be less work and be much neater... if it is possible. Good to know about the PVC and Cobra pipes. I've actually connected the pump up with PVC, but I'm still not supplying anything inside yet. So far so good. Cheers Nick
  2. HI All, I'm not sure if this is the right place to ask, but I've read some really useful forum threads here about rainwater harvesting, so here's my question: I've got a rainwater harvesting tank and small pressure-controlled pump which is currently totally independent from my municipal supply. However I'd like to put a couple of toilets and washing machine onto rainwater, but obviously can't guarantee a year-round supply. I should be able to isolate those 3 supply points onto one line such that they can be fed by rainwater, and then switched over to municipal if I don't have any rainwater in the tank. The switch would just be at one location - I don't want to have to drill new holes into the water at all 3 places and have some kind of switch (eg: below the toilet) to manually switch over each one - that would be madness. What this means though, is that these fittings (2 toilets and washing machine) would be supplied via their existing copper piping downstream of the "switch over" point. I've heard a few people say that you should not use copper pipe with rainwater as it tends to be acidic and may corrode the pipe. I'll wont be drinking this water, but I don't want to have to replace the pipes after a couple of years. Does anybody have any experience with this/know much more about it? Is just a bad idea if you plan to drink the water, or will the acidity of the rainwater destroy the pipes pretty quickly? Thanks in advance Nick
  3. Yeah I have. When it first happened I went to look at the display panel and was wondering why the controller felt the need to dump 5 degree water into the tank and send 50 degree water out to the collector (where it would dissipate off to the atmosphere rapidly!). But the more I think about it (and the more I read the manual!) the more it makes sense that it was protection against freezing. Luckily we don't get too many of those nights in the Boland.
  4. There's a sensor in the plate and one in the geyser. As far as I can tell they are still in tact and in their general day-to-day functions, the system works exactly as it should. What I mean by that is, I'll watch it in operation using the geyserwise display panel and everything seems to make sense from a numbers point of view. eg: geyser at 51, plate at 51..53..54..55..56..57..58 (pump goes on, temp in plate drops down to 51, geyser maybe goes up 1 degree). It just the coming on at night that was a surprise. Chris Louw's explanation makes sense though. Will look that up.
  5. Ahh.. OK, this could be a possibility. It has only started to happen now during some very cold nights.
  6. A geyserwise system. Mine is set to activate the pump when when the differential between plate and geyser is 7 degrees.
  7. Hi Folks, About 4 months I got a solar collector plate installed with a 220v (mains) pump to circulate. For the most part it has worked well and at the tail end of summer when it was first installed my geyser didn't do any work for weeks at a time. However in the last few weeks I've noticed the pump coming on in the middle of the night. I'm pretty sure this has only just started to happen (as opposed this being a problem from day 1 and I've just slept through it). But as you can imagine, sending lovely warm water from the geyser out to the plate at 2am, and dumping 5 degree water from the plate into the geyser at the same time is not an ideal scenario. I've spoken to the guy that installed it and he suspects it's a faulty non-return valve. I'm not sure how this would trigger the pump though. Has anyone had any similar experiences and know what the solution is? Thanks
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