On 6 Apr, 12:49, Sacha wrote:
On 6/4/07 11:48, in article , "Nick



Maclaren" wrote:

In article ,
Sacha writes:
| On 6/4/07 10:58, in article
,
| "Muddymike" wrote:
|
| I am busy spring cleaning in the garden, presently pressure washing the
| paving. There must be an easier way of doing this, it takes me hours to
| remove the winter grime and algae from our 100s of slabs. The tarmac
drive
| is another question, pressure washing seems to dislodge a lot of the
surface
| stone.
|
| So how do you remove moss and algae from paths and drives?

Generally, I don't. The sun does it for me. Algae will grow only
where the sun doesn't reach. In places where the sun doesn't shine,
I use a stiff broom and sharp sand[*].

| Isn't there some stuff called Pathclear that you water on, which kills moss
| and algae? I imagine a weak bleach solution would do it but you don't want
| it near your plants or ponds when you hose it off.

Yes, but you DON'T want Pathclear to run onto plants and ponds. Weak
bleach may kill algae, but won't affect most plants (probably not even
mosses) - we use it to sterilise sprouted seeds, after all.

Thanks, Nick. That should help the OP sort it out. We have to clean off
some of the slabs here because in wet weather they become v. slippery. I
can't remember what Ray uses but will find out later



[*] cue (Frankie Howerd): Ooh, err!

My reaction exactly!!

--
Sachahttp://www.hillhousenursery.co.uk
South Devonhttp://www.discoverdartmoor.co.uk/
(remove weeds from address)


In my younger day we used to use formaldehyde for cleaning off
concrete with algae, but I forget the strength, we also used to put it
through the spray lines for cleaning up the greenhouses.
Not nice stuff in an enclosed space.
David Hill
Abacus Nurseries.