Hydroponic Vertical Growing Towers - How I Made Mine

Sorry, this is a long one but it is very detailed.
Bosch heat gun (Amazon): https://geni.us/I9vB
The growing towers were a failure last year as I didn't have any way of testing the nutrient level - I basically killed my plants with an overdose of nutrients but this year I'm tooled up and prepared.....things are very different and all is good.
4" white pipes: Available from plumbers merchants and on ebay
Stands / shelving for system: https://ebay.us/FQhI7a
The stands are available in lots of variations but these are the ones I bought since they are powder coated to protect against rust.
The pump I am using is a (very) old Oase Nautalis 3000 which is probably around 25 years old - still going strong.
The USB 4-way splitter for powering the USB fans and USB lights can be found here: https://geni.us/pMzxIk
K1 micro media used for the mesh bags of media in the top of each tower - it supports only aerobic bacteria so processes the ammonia and nitrite but generates nitrate which is used by the plants: https://filterpro.co.uk/k1-micro-1-litre-24-p.asp
The 2" solvent pipe, rubber fittings, pipe joiners, taps and solvent glue were bought from Kockney Koi as I have an account with them but similar products can be found all over the internet.
I like Kockney Koi as they don't fanny about with nonsense - they just sell stuff which works.

I recently bought an electronic test stick to make sure I get the nutrient levels correct and also picked up a couple of nutrient solutions formulated for leaf growth from North East Hydroponics: https://northeasthydro.com/ as I was passing one day and . Next video will discuss the nutrients, show how the test stick works and explain why it is a very important piece of kit.
When I tested the water in the reservoir which supplies the vertical growing towers it was off the scale so maybe I should have bought a test stick this time last year.....
If anyone is interested and lives local feel free to call in any time to see the systems (and share any tips) that's no worries - just give me a ring first for directions.
Richard 07772848730