Clean It Up

UK General Cleaning Forum => General Cleaning Forum => Topic started by: simon w on February 15, 2020, 05:56:30 pm

Title: S H ratio 22L
Post by: simon w on February 15, 2020, 05:56:30 pm: Does anyone else use the 22 litre Gardiner back pack to apply hypo for render cleaning? if so I was wondering if you could recommend a water-hypo ratio for 15% S H for render cleaning? I know this has to be altered slightly depending on how dirty or clean the render is. I was thinking 18 litres of water to 4 litres hypo allowing for surfactant to be added.

I was also planning on making up 25 L barrels of pre mixed hypo the night before a job would a ratio of 21 L of water to 4 L hypo be suitable for render cleaning then just decanted into the back pack whilst working
Title: Re: S H ratio 22L
Post by: SB Cleaning on February 15, 2020, 06:46:36 pm: Your thinking along the right lines ;)

I would use a bit of surfactant too.
Title: Re: S H ratio 22L
Post by: Splash & dash on February 15, 2020, 07:42:10 pm: Quote from: simon w on February 15, 2020, 05:56:30 pm
Does anyone else use the 22 litre Gardiner back pack to apply hypo for render cleaning? if so I was wondering if you could recommend a water-hypo ratio for 15% S H for render cleaning? I know this has to be altered slightly depending on how dirty or clean the render is. I was thinking 18 litres of water to 4 litres hypo allowing for surfactant to be added.

I was also planning on making up 25 L barrels of pre mixed hypo the night before a job would a ratio of 21 L of water to 4 L hypo be suitable for render cleaning then just decanted into the back pack whilst working

That’s fine but I would mix it on the day not the night before
Title: Re: S H ratio 22L
Post by: Smudger on February 16, 2020, 06:52:57 pm: yes only mix on the day

personally I'd go a little stonger @ 3 parts water 1 part SH - that pretty well removes everything other than black spot

Darran
Title: Re: S H ratio 22L
Post by: simon w on February 17, 2020, 07:09:17 am: Thanks for all your replies guy's, mixing just before use, surfactant and a slightly stronger mix as Darren has suggested it is then.