[Nathanael Jones]

I just tested the TDS of the hot water and got a bit of a shock,... at 36 degree's Celsius its 23ppm!!!

BUT,... it's already dropped to 20ppm as its cooled to 33 degrees,.. so I'm hoping it'll return to 000 or near it by the time its cold again!

[d s windowcleaning]

will this cause you a problem with tds being 23ppm when working or will your working temp be less than 36  degrees ?

[Nathanael Jones]

For most jobs I'd be aiming for about 40 degrees Celsius,... but I know that heated water gives a falsely high TDS reading anyway, so I'm waiting till the water cools to see what the real TDS is. At the moment its @ 28.5 degrees, and the reading is down to 17ppm.
I have done a few jobs with the system before checking the TDS and I didn't have ANY spotting problems at all,.. and I did check very closely. Maybe I was just lucky,.. I still think I'll be moving my resin vessel after the heater just to be 100% sure from now on!

[NWH]

I`ve spoken to 2 WFPolers with hot systems in my area and they never use the hot on a daily basis,1 only uses it on first cleans and the other says he only uses it on seafront cleans.They both said that the flowrate is drastically reduced and a nuisance when using hot water,the conclusion from both of them was that day to day working there`s no difference in results, there opinion not mine.

[poleman]

I`ve spoken to 2 WFPolers with hot systems in my area and they never use the hot on a daily basis,1 only uses it on first cleans and the other says he only uses it on seafront cleans.They both said that the flowrate is drastically reduced and a nuisance when using hot water,the conclusion from both of them was that day to day working there`s no difference in results, there opinion not mine.

I'm not trying to convince anybody that they would be better off using a hot WFP system over a cold WFP system, it's up to the individual if they think paying the extra money for the hot system is worth it. They also have to take into account the running costs, i.e. diesel or gas or whatever.
I wouldn't waste my money using a hot system if I couldn't clean windows quicker which saves time and increases my earnings.
The advantages I have found:
Hot water dries on glass quicker, so when the weather is bad, the water left on the glass dries quicker than cold, so less chance of collecting dust, sand,etc and low TDS rainwater.
Hot water shifts stubborn marks and breezes through initial cleans much simpler with less effort.
Customers can see the de-ionised water drying quickly which results in fewer complaints from awkward moaning customers who are at home whilst the window cleaning is being carried out who dislike WFP method.
Hot water softens the hose, keeping it supple instead of hard which enables the hose to be reeled in much simpler with fewer kinks, especially in the winter.
Hot water on large hot panes of glass in the summer dry better than cold water on large, hot panes of glass.
Able to work early on very cold mornings problem and stress free when cold WFP users are moaning that their hose, etc are all frozen. Last November I was working in minus 5 early in the morning without any hassles. No need to take everything out of the van on very cold nights just to put it all back in the van first thing in the morning.
One other reason I use hot WFP rather than cold is because I suffer from chronic arthritus so I want to make life as easy as possible for myself.
Hot WFP gets slagged by many, that's up to them, it's their decision and I respect that. I've made my choice and I wouldn't go back to cold WFP regardless of what people have to say about it.

[Wayne Thomas]

I`ve spoken to 2 WFPolers with hot systems in my area and they never use the hot on a daily basis,1 only uses it on first cleans and the other says he only uses it on seafront cleans.They both said that the flowrate is drastically reduced and a nuisance when using hot water,the conclusion from both of them was that day to day working there`s no difference in results, there opinion not mine.

NWH,

Just out of interest, what size hose are they using and are they using their flow rate's turned up high?

[NWH]

I`ve spoken to 2 WFPolers with hot systems in my area and they never use the hot on a daily basis,1 only uses it on first cleans and the other says he only uses it on seafront cleans.They both said that the flowrate is drastically reduced and a nuisance when using hot water,the conclusion from both of them was that day to day working there`s no difference in results, there opinion not mine.

I'm not trying to convince anybody that they would be better off using a hot WFP system over a cold WFP system, it's up to the individual if they think paying the extra money for the hot system is worth it. They also have to take into account the running costs, i.e. diesel or gas or whatever.
I wouldn't waste my money using a hot system if I couldn't clean windows quicker which saves time and increases my earnings.
The advantages I have found:
Hot water dries on glass quicker, so when the weather is bad, the water left on the glass dries quicker than cold, so less chance of collecting dust, sand,etc and low TDS rainwater.
Hot water shifts stubborn marks and breezes through initial cleans much simpler with less effort.
Customers can see the de-ionised water drying quickly which results in fewer complaints from awkward moaning customers who are at home whilst the window cleaning is being carried out who dislike WFP method.
Hot water softens the hose, keeping it supple instead of hard which enables the hose to be reeled in much simpler with fewer kinks, especially in the winter.
Hot water on large hot panes of glass in the summer dry better than cold water on large, hot panes of glass.
Able to work early on very cold mornings problem and stress free when cold WFP users are moaning that their hose, etc are all frozen. Last November I was working in minus 5 early in the morning without any hassles. No need to take everything out of the van on very cold nights just to put it all back in the van first thing in the morning.
One other reason I use hot WFP rather than cold is because I suffer from chronic arthritus so I want to make life as easy as possible for myself.
Hot WFP gets slagged by many, that's up to them, it's their decision and I respect that. I've made my choice and I wouldn't go back to cold WFP regardless of what people have to say about it.

I`m not disputing anything wayne has posted,the 2 guys i spoke to just gave there opinion.

[Wayne Thomas]

I use hot WFP and I use to use microbore but found I couldn't get enough flow rate so swapped it for minibore hose. The more you use the minibore with hot water, the more it swells up in size and so allows a better flow of water I've found.

[NWH]

Hi Wayne,
                 1 said he was using 1/2 thermopure system and if i can`t remember if the other 1 said he was going to go minibore or he already had it,the other guy has a thermopure aswell.

[NWH]

I`ve been told you can use minibore with no problems.

[Wayne Thomas]

When I use hot water the flow rate appears to slow down a bit although the water spreads along the glass more like a much thinner film of water and covers the glass quicker IMO.
If I'm using water cold I'll turn my flow rate down but if I'm working hot I'll turn it up to get more volume of water but clean the glass quicker as it doesn't take as long to cover the pane of glass with water when rinsing especially on large panes of glass.
It is definitely quicker to scrub the glass hot than cold if dirty, as it does a very thorough job of removing all the dirt, muck , birds mess than cold ever would with the same minimal effort.

[Nathanael Jones]

With my setup the flow rate is the same, hot or cold! I can't understand how heat would affect the flow rate unless the heater itself restricts the flow (Mine doesn't!).
The TDS of the hot sample has now dropped to 007 btw @ 21 deg C.

[Wayne Thomas]

I just tested the TDS of the hot water and got a bit of a shock,... at 36 degree's Celsius its 23ppm!!!

BUT,... it's already dropped to 20ppm as its cooled to 33 degrees,.. so I'm hoping it'll return to 000 or near it by the time its cold again!

When your water goes through your boiler and comes out reading a high TDS I wonder if the TDS is being affected by the metal it's passing through. I know mine goes through a heat exchanger and 20 litres of water sits in a stainless steel holding tank so it can't affect the TDS whereas some other metals can. Don't quote me on it but I reckon it has something to do with the fact that it's probably not inca alloy or stainless steel which is why your TDS rises after the boiler. I could be wrong as it's just a hunch.

[Wayne Thomas]

Forgot to mention......after the water goes through my heater the TDS reading is 000 and it doesn't go through a DI bottle afterwards as I have mine before the heater.

[Nathanael Jones]

TDS meters measure the electrical conductivity of the water,.. a variable which is affected by heat. The hotter the water, the more conductive it is.
I don't think my heater is affecting the TDS at all,.. the water still flows through the heat exchanger when the heater is switched off, and the TDS is 000. Now the sample is cooling, it looks like it will prob return to 000 by the time its cold again.
I will be repeating the test tomorrow night just to be sure,.. and I'll be trying the resin after the heater too, as someone told me the resin is more efficient when warm water is used.

I'll let you know how the testing goes!

[Clear Vision]

Tried phoning you on your number on your website but keep getting a error message?

[Nathanael Jones]

Tried phoning you on your number on your website but keep getting a error message?

did you put 00353 in front, and remove the "0" from the 086???
The joys of international dialing!!!

Call me tomorrow,.. the wife will be annoyed with me talking about work this time of night!!

[Clear Vision]

Never tried that??

Didnt know you were abroad?

Maybe I wont call you. It will cost a fortune!!!! lol

[Nathanael Jones]

Yeah,.. I'm in Ireland,.. the land of eternal rain!!

[Wayne Thomas]

Yeah,.. I'm in Ireland,.. the land of eternal rain!!

I'll vouch for that, when I was over there it rained nearly all the time, lol