How To Build A Rainwater Tank First Flush Diverter And Plumbing In The Tank – DIY

With the rainwater tank set up it was time to plumb it all in to collect the water from my gutters which are still clear thanks to my gutter mesh I installed over a year ago.

The mesh has 5mm holes in it to allow the rain to enter the gutters however all the dust and other fine sediment that accumulates on the roof during the dry suddenly gets washed off and heads straight for the tank in the first few minutes of rain. This fine sediment will become an unwanted sludge in the base of your tank and lead to clogging of pipes. To remedy this I built a first flush diverter. Now you can buy a 90mm kit for $27 but where’s the fun in that! Also not everyone has access to a cheap kit but can easily make one up using regular plumbing fittings and following these steps.

There are recommendations of clearing 0.5-2L per m² but I would need either 30m of 100mm pipe or a barrel to do this. I figured even a small amount would help so I went about gathering the parts to build my DIY first flush diverter.

Generally a first flush system is connected vertically down from the main plumbing via a T-joint fitting. Since I was using 90mm pipe I needed the top part to be a short 90mm section to slot into the T-Joint. This went into a 90-100mm adapter. Even though it’s expanding into 100mm I used the word ‘reducer’ because when you go to the shops and ask it may be labelled as such. The reducer is important for two reasons. It allows me to use 100mm pipe which gives me an extra ~5.5L for every metre length. Secondly, by putting a 92-95mm wide float in the 100mm pipe the difference in diameter is how the float will plug up the diverter when it rises to the top to allow water to then head towards the tank. A 100mm sleeve/coupling is then used to attach the reducer to the 100mm section of pipe that will hold the dirty water. Note: The coupling at the top does not need to be threaded.

 

 

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The Honda Integra Ute or “Things I stuff into my car”

My old 1994 Honda Integra VTi-R has served me well for 15 years. It’s done 298,000 kms and the engine is still rock solid. Externally it has scrapes and dents left by a multitude of blind muppets who  I guess are driving by touch and using the cars on the road as some sort of navigational braille. They also feel it’s okay to not stop after hitting a car and take responsibility for their ineptitude.

As much as I love cars I still think of them as a functional item and although completely not designed for hauling heavy cargo, I’ve still used the Integra as a utility vehicle.

The first time I used it as a ute I carried seven 3m long hardwood sleepers and 10 bags of concrete in it. I don’t think it was having much fun that day.

Here is just a tiny portion of the stuff I’ve carried in it.

 

20kg Bags of Lucerne (I had two in the front passenger seat as well)

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Bowls day 2012 poll

So I probably should have done this earlier. If enough people really want the change I’ll see what I can do.
The reason it’s not on the weekend before Xmas is because it’s too close to Xmas for a lot of people or you may already be heading off for family time.
Or you don’t want to be wasted and scaring the children.
Anyways. Let me know what you would like. I’m only going to pay attention to the numbers if they exceed sample size of say 30+
And obviously if I am able to change the date. It’s currently locked in for the 15th at Toowong.

Remember to still vote if you want to keep it on the 15th.

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