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How to deal with bacteria in a rainwater harvesting tank

Posted by Barry Nutley on 20 May 2011 at 9:32 am

How to deal with bacteria in a rainwater harvesting tank

Q: I have been told that bacteria is avoided by having small ultra violet light at the top as bacteria collects on the surface A: Yes, UV filtration will kill off any bacteria that develops in rainwater harvesting tanks (both above and below ground). However, UV will kill everything off, so i…

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Smelly brown water from my rainwater tank!!

Posted by Barry Nutley on 4 August 2010 at 8:30 am

Smelly brown water from my rainwater tank!!

Q: Smelly brown water is coming through my rainwater harvesting system. I have been advised to add chlorine to the underground tank. What do you think? A: Whilst that will work. It's not the ideal solution. Adding chlorine will probably solve the problem in the short term, but realistically you …

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Is water the new carbon?

Posted by Barry Nutley on 15 July 2010 at 11:20 am

Is water the new carbon?

I've mentioned the importance of water saving in previous blogs, but is it set to become the most talked about environmental issue? I recently read an article eluding to this: David Symons, director of consultancy WSP Environment & Energy, before his presentation at IWEX on Wednesday, Is w…

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Rainwater harvesting: how to avoid sharks

Posted by Barry Nutley on 28 May 2010 at 9:31 am

Rainwater harvesting: how to avoid sharks

A recent report by Which?, suggested that there are many "solar sharks" in the industry. We have been asked if there is a similar problem in the rainwater harvesting industry? And what to look out for? Firstly, let me say that I don't believe that there is the same sort of problem in the industry…

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Population pressures could make water shortages a UK crisis

Posted by Barry Nutley on 16 April 2010 at 9:20 am

Population pressures could make water shortages a UK crisis

We've had one of the wettest winters in history, and it would be easy to think that we have no issues with the level of potable water in this country. I've mentioned in previous blogs that there are other issues that suggest that water (or potential lack of it) is still a problem we need to address.…

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Rainwater harvesting: where are the incentives?

Posted by Barry Nutley on 5 March 2010 at 9:06 am

Rainwater harvesting: where are the incentives?

The recent announcements surrounding the feed-in tariff (FIT) and renwable heat incentive (RHI), are (generally) fantastic news for the renewable industry. But the Government seems to have forgotten about rainwater harvesting. Whilst technically not a renewable technology, water is still an impor…

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How do rainwater harvesting systems cope with frost and snow

Posted by Barry Nutley on 20 January 2010 at 9:07 am

How do rainwater harvesting systems cope with frost and snow

As the snow and frost begin to thaw we look at the impact that has on rainwater harvesting, and what to do about it. Underground tank: 1. As far as the tank, and any components housed within it are concerned, very little, if any, extra care is needed. The temperature of the ground at …

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The wettest winter for years

Posted by Barry Nutley on 14 December 2009 at 10:20 am

The wettest winter for years

With all the rain we've had recently, it's difficult to convince people that water really is in short supply for some of us. However, what we need to consider is where does it all go, and why, if it's so wet, is it scarce? To answer those questions very briefly: 1. Population is increasing, as…

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Will it cost me more to harvest rainwater?

Posted by Barry Nutley on 26 October 2009 at 2:32 pm

Will it cost me more to harvest rainwater?

Rainwater harvesting systems tend to be pumped, causing people to ask the following questions : 1. "Does the cost of running the pump negate any savings made?" 2. "By running a pump, are we increasing our carbon emissions, and negating any environmental benefits?" Well, to answer those…

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Rainwater harvesting: small is beautiful

Posted by Barry Nutley on 5 October 2009 at 11:49 am

Rainwater harvesting: small is beautiful

When we think of rainwater harvesting, we tend to envisage a full scale domestic system with a large tank, say 4000 litres, buried underground, providing water to the toilets, washing machine et al. This can be a costly business (especially if it's a retrofit project) with not much change from £7,0…

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