This is how it is able to solve both issues –
1) Killing existing growth, and
2) Preventing regrowth
In itself, MossBlocker is almost pH neutral, and therefore harmless to most surfaces.
Thereby getting and keeping your surfaces free of moss and algae.
Therefore MossBlocker is effective against almost all moss and algae varieties, and the new minuscule imbalance created by MossBlocker is effective in preventing most and algae regrowth for the same varieties, for as much as 2 – 3 years.
chestnut court, otterham quay lane, rainham, me8 8as