Hydra Bio Start is a concentrated biological powder for sewage treatment plants. It activates micro-organisms growth for biological activity and removes bad septic smells. For more information: http://hydra-int.com/sewage-medication.html
Hydra Lift is a cleaner for Brick, concrete and Patio that removes salts, algae, moss from the surface. It removes moss and leave surface clean & look new. Click here: http://hydra-int.com/brick-patio-cleaner.html
