Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Stoots on December 11, 2019, 04:37:55 pm
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I know, it seems obvious it should have but I've never tried.
So I got a new reel and fitted 100m 6mm microbore.
The flow is rubbish compared to what I've been used to using.
Compared to my old reel the flow is poor. Then I realise on my old reel I only had about 60m of 6mm not 100m.
So I stuck my old 60m of hose on the new reel and hey presto the flow is back where I like it.
I just wondered if anyone had compared 6mm to 8mm and if I bought 100m of 8mm would I get a better flow?
If not ill just use it as 60m and keep the 40m spare in the van if I ever need it
although I seemed to manage on all my work without the extra length.
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the longer the length of hose the more friction with the water so the pump needs turning up - but ultimately you are governed by the size of your jets in the brush head - you can only force a certain amount of water through them
Darran
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Yes 8 mm will give better flow than 6mm for the same length of hose .
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6mm is pole hose? For those that use 100 metre of 6mm, is it strong enough to pull hard around corners, through bushes etc without snapping.
I’m thinking of moving over from my trusted 10 year old 8mm hose.
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We have 1 reel of 6mm on the van and 1 of 8mm. I notice a big difference in flow rate with colder water.
Microbore is just about 1/2 the size of minibore.
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6mm is pole hose? For those that use 100 metre of 6mm, is it strong enough to pull hard around corners, through bushes etc without snapping.
I’m thinking of moving over from my trusted 10 year old 8mm hose.
Not sure if you mean 100 meters of pole hose or microbore ? We use 100 m microbore and drag it around 3 sides of a house no problem much easier than 8mm
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Yes, that’s why I only use 8mm Adam, far better flow, I run full wack and want as much flow as possible.
Once you’ve got an electric hose reel, there isn’t much of a reason to not have 8mm. 6mm is great when manually reeling in, but with a leccy hose reel, 8mm is a doddle.
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Yes, that’s why I only use 8mm Adam, far better flow, I run full wack and want as much flow as possible.
Once you’ve got an electric hose reel, there isn’t much of a reason to not have 8mm. 6mm is great when manually reeling in, but with a leccy hose reel, 8mm is a doddle.
OK thanks
I'm a full whack man myself and with 100m 6mm microbore it felt like a drizzle.
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Yes, that’s why I only use 8mm Adam, far better flow, I run full wack and want as much flow as possible.
Once you’ve got an electric hose reel, there isn’t much of a reason to not have 8mm. 6mm is great when manually reeling in, but with a leccy hose reel, 8mm is a doddle.
Are you aware that Grippa only recommend 6mm for hot !
Might be too much water to stay hot in the journey to brush
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Bigger jets.
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6mm is pole hose? For those that use 100 metre of 6mm, is it strong enough to pull hard around corners, through bushes etc without snapping.
I’m thinking of moving over from my trusted 10 year old 8mm hose.
Not sure if you mean 100 meters of pole hose or microbore ? We use 100 m microbore and drag it around 3 sides of a house no problem much easier than 8mm
Thanks.
So pole hose is 6mm (microbore)?
And minibore is 8mm?
Noob questions I know but I’ve never had to change my hose or reel in over 10 years.
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Pole hose is 5mm.
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Pole hose is 5mm.
Thanks
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6mm is pole hose? For those that use 100 metre of 6mm, is it strong enough to pull hard around corners, through bushes etc without snapping.
I’m thinking of moving over from my trusted 10 year old 8mm hose.
Not sure if you mean 100 meters of pole hose or microbore ? We use 100 m microbore and drag it around 3 sides of a house no problem much easier than 8mm
Thanks.
So pole hose is 6mm (microbore)?
And minibore is 8mm?
Noob questions I know but I’ve never had to change my hose or reel in over 10 years.
You can have
6 mm pole hose connected inside your pole
6mm microbore yellow hose goes on your hose reel
8 mm minibore yellow hose goes on your hose reel
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Yes sorry pole hose is 5 mm internal not 6 mm 😬😬
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Yes, that’s why I only use 8mm Adam, far better flow, I run full wack and want as much flow as possible.
Once you’ve got an electric hose reel, there isn’t much of a reason to not have 8mm. 6mm is great when manually reeling in, but with a leccy hose reel, 8mm is a doddle.
Are you aware that Grippa only recommend 6mm for hot !
Might be too much water to stay hot in the journey to brush
Still worth a go mate 👍🏼 I’m sure it’ll be ok when hose reel is only 20-30m out...
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Yes, that’s why I only use 8mm Adam, far better flow, I run full wack and want as much flow as possible.
Once you’ve got an electric hose reel, there isn’t much of a reason to not have 8mm. 6mm is great when manually reeling in, but with a leccy hose reel, 8mm is a doddle.
OK thanks
I'm a full whack man myself and with 100m 6mm microbore it felt like a drizzle.
I run 3mm pencil jets as well mate, that helps as well.
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Zesty , we may have to investigate if we are compatible :-*
Big hose and big jets have not been tested yet , mind you if you do come down for a fit we can test before you buy !
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Zesty , we may have to investigate if we are compatible :-*
Big hose and big jets have not been tested yet , mind you if you do come down for a fit we can test before you buy !
It’d be interesting mate! Yeah I’d defo come down so I can learn how to use it etc etc!
Just replied back to you on the other thread with another issue!
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hot water,standard 2mm jets and 6mm microbore and my flow is fine on a controller setting of 45 in this cold weather.....
your just making your job harder using minibore hose....its a real drag(pun intended!)to drag around when using 100m......
adam just turn your flow up or get some sort of hot water system...you ll regret getting minibore hose for sure if your used to microbore.....
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hot water,standard 2mm jets and 6mm microbore and my flow is fine on a controller setting of 45 in this cold weather.....
your just making your job harder using minibore hose....its a real drag(pun intended!)to drag around when using 100m......
adam just turn your flow up or get some sort of hot water system...you ll regret getting minibore hose for sure if your used to microbore.....
My flow is on full whack with 100m of 6mm and the flow is just ok but its not great.
I'm going to check my battery though because I've a feeling its on its way out it almost died on me yesterday.
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hot water,standard 2mm jets and 6mm microbore and my flow is fine on a controller setting of 45 in this cold weather.....
your just making your job harder using minibore hose....its a real drag(pun intended!)to drag around when using 100m......
adam just turn your flow up or get some sort of hot water system...you ll regret getting minibore hose for sure if your used to microbore.....
What cold weather is that Daz? It’s been 8° and higher all week.
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When looking at flow - volume the hose ID will have an impact on these as already commented the hose wall itself does create a restriction as will the expansion rate of the hose. When air temps are cooler the hose will not expand as much or as quickly. A hot system will mean the hose wall is a little more supple and mean the pump does not have to work quite so hard to move the water as in Daz comments. This also allows the flow rate to be turned down with out effecting the anount of water delivered to the brush
Also a Hose has a maximum capacity of water it can carry with 8mm I have tested this is about 2.7lpm. Once this maximum capacity is reached pushing the pump harder will not increase the LPM at the brush head, It just means the pump is working hard for no benefit drawing more current than it needs to and getting hot.
6mm will have a lower max capacity than 8mm. In technical terms we want a smooth flow of water through the hose with the least resistance, (Laminar) This is the water all moving in the same direction at the same rate. Bit like a nice free flowing motorway. Once the Hose capacity is exceeded the flow begins to move at different rates and directions within the hose (Turbulent) Now the all the three lanes of traffic is trying to get through using one lane and everything slows down and becomes start/stop rather than free flowing.
This blog gives more detail http://springltd.co/blog/84/flow-resistance-and-volume
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When looking at flow - volume the hose ID will have an impact on these as already commented the hose wall itself does create a restriction as will the expansion rate of the hose. When air temps are cooler the hose will not expand as much or as quickly. A hot system will mean the hose wall is a little more supple and mean the pump does not have to work quite so hard to move the water as in Daz comments. This also allows the flow rate to be turned down with out effecting the anount of water delivered to the brush
Also a Hose has a maximum capacity of water it can carry with 8mm I have tested this is about 2.7lpm. Once this maximum capacity is reached pushing the pump harder will not increase the LPM at the brush head, It just means the pump is working hard for no benefit drawing more current than it needs to and getting hot.
6mm will have a lower max capacity than 8mm. In technical terms we want a smooth flow of water through the hose with the least resistance, (Laminar) This is the water all moving in the same direction at the same rate. Bit like a nice free flowing motorway. Once the Hose capacity is exceeded the flow begins to move at different rates and directions within the hose (Turbulent) Now the all the three lanes of traffic is trying to get through using one lane and everything slows down and becomes start/stop rather than free flowing.
This blog gives more detail http://springltd.co/blog/84/flow-resistance-and-volume
Thanks Ian. That's a good read all makes sense.
Slightly off topic but I have bought 2 v11 charging controllers and wanted to ask you if it's possible to wire both up to the same battery? The split charger orange wire I mean, I have wired the other wires to the one battery but not sure If I can use both controllers to charge the same battery? I dont want to damage them.
Thanks
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Hi Gomo
Yes they could both be connected to the sane vehicle battery. On engine start the controllers would see the volts at the alternator increase and the relays would close.
It may not increase the charge to the leisure battery though the alternator output is still only charging one leisure battery and the charging load would split across both the V11C so you would still get around 7 amps an hour going back into the battery.
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Hi Gomo
Yes they could both be connected to the sane vehicle battery. On engine start the controllers would see the volts at the alternator increase and the relays would close.
It may not increase the charge to the leisure battery though the alternator output is still only charging one leisure battery and the charging load would split across both the V11C so you would still get around 7 amps an hour going back into the battery.
OK so in effect I may as well just wire one controller to the battery and leave the other if there's no benefit to having both connected?