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Sciency question.
An Old Farts member owns a nursery for native plants and sells mainly wholesale.
She uses a water recycling system which has gone kerfluey and would welcome some advice on a replacement.

Anyone know much about the chemicals used in the various systems?  that's what has her confused.

Quote: Wrote:We recycle water which goes back to the dam then treat it when irrigating.
Got the bad news today that our water treatment system will cost approx $5000 to fix. Not worth it. So been researching alternatives.

This is when my difficulties with 'sciency' type things comes to the fore.
Trying to research the different treatment systems - how effective they are, what pathogens they kill, how much contact time is needed (for each pathogen), how much it will cost, how the current system can be adapted, and so on.

I need someone who understands it all to just tell me which would be best. I know from experience the professionals can't make a better decision than me so I have to try to get my head around it all.

At this stage ozone or UV are the preferred alternatives, if the current system can be adapted.
Current system is chlorine dioxide - hydrochloric acid and sodium chlorite injected in line as pumps are running. Very expensive to set up and only lasted 12 years.

Chemistry anyone???
Sorry, not my area.

Did find this amusing: "I know from experience the professionals can't make a better decision than me so I have to try to get my head around it all."

5 Grand to replace and the first one lasted 'only' 12 years? I'd say the old bird is a bit 'round the fucking bend. Seems cheap to me at twice the price.

You wanna be in business then anti up damnit. Stop bitching and whining about how much it costs.
You can lead 'em to knowledge, but you can't make 'em think.
I left that one about the professionals go through to the keeper unremarked too. She's fairly new, mate of an old cyber mate so slack is given.

She hates the business, but is too far in to back out and has had a really big run of bad luck lately, including family worries, so she's not quite as silly as that post indicates.
Just thought someone may know what kind of chemical concoction might be recommended. Just trying to help out, that's what the forum's for really. thanks anyway Sparky.
Both ozone and UV are highly efficient, so whichever is the cheapest is good.

I imagine UV would be easier to deal with and probably cheaper.
Love is... that one person whose freshly-warm toilet seat you don't find disgusting.
Thanks muchly TA, I'll pass that on.
( By professionals she meant other nursery business growers, not the people who make the gadgets. )
I know some chemistry and some agriculture.
You'd think i'd be ideal to field the question.

But i don't know Oz. I've never had to deal with minimal water. More the opposite.
I also don't know what kind of plants she's growing. They're all different.

Hence, not enough information.

Activated charcoal is a possibility; not sure about cost-effectiveness.
If she wants to get fancy, there are plant systems that funky water can be run through to clean it up.
I've seen some of them; it's pretty cool stuff...but you'd really need to love that sort of thing to bother.
Some people do love that sort of thing...and i find them to be rather heroic.

Passion over profit...that sort of thing.

I could offer some links. They would likely be irrelevant for Oz and water well as the plants she's growing.

Australia has some cutting edge 'perma-culture' freaks. I even know a few of them.
It's neat stuff...but you really have to love it.
(i.e., not necessarily economically sound stuff at this stage. But it could be, in the near future.)

I'm sure none of that helps.

My advise to her would be to do some research. Stuff that's applicable to her circumstances.

We're having some issues as well, with our fecund garden. It was under 4' of water for 3 weeks this spring. Killed our fig trees, which is sad.

btw, the 'bread-basket' of America is in pretty deep shit presently. Massive flooding. Continues as i type.
But remember, AGW is a hoax. POTUS says so. Smile
You can lead 'em to knowledge, but you can't make 'em think.
America has the best air and the best water.
Love is... that one person whose freshly-warm toilet seat you don't find disgusting.
She's in a tricky situation, it's a specialist native Australian plants only nursery, grevilleas and banksias mostly, and they are a whole different can of worms to the normal run of plants. Too much fertilizer or minerals, meaning minimum used for normal plants, kills them. They're used to poor soils and low nutrients so she's in a balancing act of producing them in saleable size as fast as possible but restricted by their nature.

She regrets getting into the business now as her personal circs have changed, and she's kind of trapped in it now.
Long story, and not mine to tell, I just feel for the woman's predicament. She doesn't have a cent to waste on things that won't work hence the question.

She has been researching but doesn't have the nous to weigh up the pros and cons of the various chemical methods these things use. The other nurseries around have mixed commercially popular plant ranges and can afford to lose some of the native plants but she can't, they're all she's got. She can't change due to supply contracts and not having enough capital to reconstruct the business into rivalling the other types of nurseries around which offer more public appeal.

I know business is a jungle and if she can't make it then 'tough titties' but when it's someone you kind of know the backstory to, it's a little harder to be pragmatic.

People think grevilleas are tough, and they are, in the right place.
I've found the buggers to be very touchy as I planted a few here and whatever is residual in the garden bed kills them in one part, while others thrive, no more than half a metre away from the death zone.

3 grevilleas in succession dying in certain parts of the one bed and 2 that double in size every year and bloom happily just a step away in what appears to be the same soil is a lesson on how touchy the bloody things can be.
On a positive note, I now know what a "grevillea" is.
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