Spraying a large area with Centrachlor / Hypochlorite
Discussion
We've a large concrete back yard and paved paths around the house that periodically need spraying as they go green (thats to the mild damp weather here in N.Ireland).
I've previously used watering cans (this requires a lot of running back and fourth as a watering can full of water and solution doesnt go very far, and more recently i've used a 12 litre napsack type sprayer, which is "better" but desperately heavy to maneuver about / get on your back, etc.
Is there any other method i should be using?
Its currently taking around 3+ hours each time to do
I've previously used watering cans (this requires a lot of running back and fourth as a watering can full of water and solution doesnt go very far, and more recently i've used a 12 litre napsack type sprayer, which is "better" but desperately heavy to maneuver about / get on your back, etc.
Is there any other method i should be using?
Its currently taking around 3+ hours each time to do
I find wetting the area with a fine spray of just water from a hose, then using a sprayer to apply the cleanser works quite well.
I find detergent, like Aldi clothes washing liquid more effective than just bleach.
And going at it with a brush is more effective than just spraying and waiting.
I find detergent, like Aldi clothes washing liquid more effective than just bleach.
And going at it with a brush is more effective than just spraying and waiting.
I use a snow foam lance with my karcher pressure washer like below assuming you have a pressure washer other ones are available for different washers
https://www.ebay.co.uk/itm/387792444781?chn=ps&...
fill bottle with with hypochlorite turn dial to minimum and spray all over area
I use gloves to fill etc After spraying I flush out with water a few times
https://www.ebay.co.uk/itm/387792444781?chn=ps&...
fill bottle with with hypochlorite turn dial to minimum and spray all over area
I use gloves to fill etc After spraying I flush out with water a few times
I have an Allen rambler walkover sprayer that I bought seized on eBay years ago for not much, fixed and used for a couple of years and it's perfect for this.... Also known as a pedestrian sprayer.
The pump is driven from the wheel and the spray can be turned off and on with a thumb operated
lever valve on the handle.... Quite expensive new.
The pump is driven from the wheel and the spray can be turned off and on with a thumb operated
lever valve on the handle.... Quite expensive new.
shedweller said:
I have an Allen rambler walkover sprayer that I bought seized on eBay years ago for not much, fixed and used for a couple of years and it's perfect for this.... Also known as a pedestrian sprayer.
The pump is driven from the wheel and the spray can be turned off and on with a thumb operated
lever valve on the handle.... Quite expensive new.
That looks excellent but pricey new! The pump is driven from the wheel and the spray can be turned off and on with a thumb operated
lever valve on the handle.... Quite expensive new.
Good you got a bargain!
Good calls RE: wetting the area first, then spraying neat from a 5 litre sprayer.
I think that could be a solution for me to try.
Also a good call RE: using the power hose and foam spray attachment. I do have a power hose and a spare foam spray attachment so may well give that a go!
Thanks all!
I think that could be a solution for me to try.
Also a good call RE: using the power hose and foam spray attachment. I do have a power hose and a spare foam spray attachment so may well give that a go!
Thanks all!
I will try spraying the patio down first next time. Cleaned mine on Friday afternoon with some 5:1 sodium hypochlorite, 5L sprayer and agitation with a stiff brush. I was using the brush initially to brush away residual dirt and debris after it had dried on but I can see a big difference between simply spraying/drying and spraying/drying/wetting/brushing because the grain of the slabs is really showing up well now.
Before:
After:
Before:
After:
beambeam1 said:
I will try spraying the patio down first next time. Cleaned mine on Friday afternoon with some 5:1 sodium hypochlorite, 5L sprayer and agitation with a stiff brush. I was using the brush initially to brush away residual dirt and debris after it had dried on but I can see a big difference between simply spraying/drying and spraying/drying/wetting/brushing because the grain of the slabs is really showing up well now.
Before:
After:
Looks good!Before:
After:
Thats pretty much what i had been doing but our back yard is large (big enough to turn a car in) and when the concrete is dry it absorbs a lot of liquid when spraying. Theres then a patio area similar to yours plus - probably like yours - a path around the house.
The yard consumes the most time as a 5 litre sprayer was not putting much of a dent in it. I'd say the yard itself maybe required 20 refills - something like that. Thats a lot of running back and forward, manhandling the drums and filling up of sprayers.
Will see how i get on with soaking it first then spraying the solution neat over it.
I got this electric sprayer last summer which will alleviate the constant pumping.
https://www.amazon.co.uk/dp/B0CRYGR46L?ref_=ppx_hz...
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