Isopropanol advice

[kevinc250]

A very small amount would dilute, ive found.

hi pane, welcome to the world of additives, yes that subject that causes a lot of greif amongst the die hard old school cleaners, but for say a 350 tank i'd be popping at least a 100ml in the night before this is not for the stopping water freezer thing but just for the cleaning ability,

 

[Pjj]

hi pane, welcome to the world of additives, yes that subject that causes a lot of greif amongst the die hard old school cleaners, but for say a 350 tank i'd be popping at least a 100ml in the night before this is not for the stopping water freezer thing but just for the cleaning ability,

Probably a stupid question but doesn’t it evaporate?

 

[Dave B]

Probably a stupid question but doesn’t it evaporate?

Not when mixed with water
It would if left in an open bottle
Does make a big difference to cleaning power

 

[spruce]

The younger generation don’t know what they missed out on
Re spooling a chewed up cassette tape as you recorded it yourself and don’t want to lose it

Cassette tapes! The heat in summer with the car stood in the African sun used to cause the tape to stretch and leave a residue on the reading heads. The 'rubber' drive wheels would also get 'sticky' which the tape would stick to and wind up a mess inside the radio. Sometimes we could save the tape if we caught it in time, but sometimes we would have to cut the damaged part out and stick the tape together using a special repair tape we could buy. I've forgotten what they called it.

So between the singer slowing down because of the stretched tape and then bits missing, we just got on with it. Cassettes were much better than the old 8 tacks that we started off with that preceded cassettes. I can remember how stoked I was when I fitted my first cassette player in my car. Must have been the late 1960s. It was the best day ever in my young life.

 

[Iron Giant]

The four Yorkshiremen sketch has just popped into my head

I had no idea what you were on about till I watched, before my time

 

[Crystalalan]

I had no idea what you were on about till I watched, before my time

Ah yeah absolute classic. Really old sketch. I think its been recreated a couple of times to.

 

[kevinc250]

Ah yeah absolute classic. Really old sketch. I think its been recreated a couple of times to.

how about the stan boardmans the fokkers joke with des o connor, he was banned from the bbc for life for that joke.

 

[Crystalalan]

I will have to check it out

how about the stan boardmans the fokkers joke with des o connor, he was banned from the bbc for life for that joke

 

[Part Timer]

how about the stan boardmans the fokkers joke with des o connor, he was banned from the bbc for life for that joke.

Bombed the chippy didn't they?

 

[Iron Giant]

 

[Dave B]

You can’t beat some of the old old comedians
Mick miller is hilarious and still going
Saw him a few years ago in camber sands
He does all the holiday parks still

 

[Iron Giant]

You can’t beat some of the old old comedians
Mick miller is hilarious and still going
Saw him a few years ago in camber sands
He does all the holiday parks still

I agree mate, I think there was a golden age of comedians stand up, sketch shows and sit coms that just can't be beaten there is only a few these days of the young bloods that can have me laughing, the old guard have me laughing all the time love watching Porridge and Only Fools and Horses

 

[kevinc250]

You can’t beat some of the old old comedians
Mick miller is hilarious and still going
Saw him a few years ago in camber sands
He does all the holiday parks still

your right dave, i watched his videos on you tube and he's just as funny as i remember him, i'm with iron giant as theres not really anyone these days that makes me laugh, sarah millican i can get along with, early peter kay and john bishop. couldn't understand jethro whatsoever, the plank with eric sykes and tommy cooper is a good one but if you like silent comedy then inside no9 season one episode two is a must watch, infact the whole inside no9 is worth watching along with the cleaner with greg davies (its curry night at the white horse).i'm rambling too much aren't i ?.

 

[ched999uk]

the cleaner with greg davies (its curry night at the white horse).i'm rambling too much aren't i ?.

I do like The Cleaner too, along with The Inbetweeners - that reminds me of lots of suff when I was young. I can see elements of my mates in the characters

 

[Crystalalan]

I do like The Cleaner too, along with The Inbetweeners - that reminds me of lots of suff when I was young. I can see elements of my mates in the characters

Totally agree with you with regards to the imbetweeners. Its hilarious. Love Karl pilkingtons documentarys to. Its obviously scripted to a degree but he`s a funny ******.

 

[Dave B]

your right dave, i watched his videos on you tube and he's just as funny as i remember him, i'm with iron giant as theres not really anyone these days that makes me laugh, sarah millican i can get along with, early peter kay and john bishop. couldn't understand jethro whatsoever, the plank with eric sykes and tommy cooper is a good one but if you like silent comedy then inside no9 season one episode two is a must watch, infact the whole inside no9 is worth watching along with the cleaner with greg davies (its curry night at the white horse).i'm rambling too much aren't i ?.

I’ve got the plank on dvd
Tommy cooper was a legend anyway
Mick miller doing the alcoholic radio presenter doing the noddy show is excellent

 

[kevinc250]

or harry worth the window scene, on you tube just for the shop front, early morning shiners.

 

[Dave B]

 

[Iron Giant]

Could be @Part Timer & @Den

 

[DanielT]

Every year this subject comes up. What I would call boardering on a scam text/email is sent out by a supplier to window cleaners on his data base to draw an unsuspecting windie in.

Have a look at the first block where Isoprop is used as an anti-freeze in water and the %'s required to achieve this.

Isopropanol (2-Propanol) based Freeze Protected Water Solutions

If you want to protect your full tank of water to -4 degrees then you would need 10% Isoprop to 90% water. But again, what is the temp of the water in your tank at any given time in winter?

We don't live in the polar regions of the frozen north. I once tested the temperature of the water in my tank over a weekend in winter. I still had a good amount of water in my 650 liter tank when I finished on Friday. The tank was covered by an old duvet and I had an 800w frostat heater in the back set to come on at 2 degrees C. It switches off at 5 degrees C. The temperature of the water in the tank on Saturday afternoon was 9 degrees C.

Moving water freezes at a lower temperature as when water moves it generates a little heat. Its to do with the amount of kenetic energy in the moving/flowing water. The water in our tanks sloshes around as we drive so this could add to a little warmth being generated in the water and raising the temperature a degree or 2. (I have never tested this).

So if add a cap full of Isoprop to my tank in the middle of winter on the belief that it will solve my freezing concerns then I will be elated with what I perceive to be as excellent results.

Got an email last night from a supplier for window cleaning who may well have a warehouse, saying that a litre of isopropanol per 600 litres would stop freezing down to -3. So does everyone think this is incorrect?

 

[ched999uk]

Got an email last night from a supplier for window cleaning who may well have a warehouse, saying that a litre of isopropanol per 600 litres would stop freezing down to -3. So does everyone think this is incorrect?

Pure alcohol freezes at -114.7 deg C. Surely a 1:600 mix would be so weak it wouldn't really have a measurable effect? At 5% isopropyl (30 litres) you might be protected down to -3 deg C from what I can find out that is.
Just found this calculator: Alcohol Percentage to Freezing Point Calculator | shotgundentist it's actually for alcoholic drinks but same principal.
As you might guess, I'm at home due to snow first thing then 40mph winds and rain so I'm staying warm indoors and cutting some new van signage.