Got asked to bid on this 7700 sf driveway made of these small pavers that have all kinds of moss between them. Has anyone ever cleaned something like this? I"ve got two ideas:
1. Wash like a normal driveway: 3 gallons of 12%SH + 2 Gallons of water + a cup of Dragon Juice downstreamed onto the surface. Dwell. Use surface cleaner and rinse. With this method, I'm concerned that the surface cleaner will remove the moss (which is what we want) and whatever else is between the pavers, which will leave a lot of space in between the pavers. I got the impression the contractor doesn't want to spend the money to fill the space between the pavers with sand/polymeric sand.
2. To minimize space between the pavers, use a stonger SH solution sprayed on directly (not downstreamed), dwell, then just rinse off. The moss will be killed, but space between pavers will be filled.
Either way, how would you clean this?
1. Wash like a normal driveway: 3 gallons of 12%SH + 2 Gallons of water + a cup of Dragon Juice downstreamed onto the surface. Dwell. Use surface cleaner and rinse. With this method, I'm concerned that the surface cleaner will remove the moss (which is what we want) and whatever else is between the pavers, which will leave a lot of space in between the pavers. I got the impression the contractor doesn't want to spend the money to fill the space between the pavers with sand/polymeric sand.
2. To minimize space between the pavers, use a stonger SH solution sprayed on directly (not downstreamed), dwell, then just rinse off. The moss will be killed, but space between pavers will be filled.
Either way, how would you clean this?