 | Equipment used to drill hole and remove material from under concrete slab for the sub-slab ventilation system. |
 | Installing outside pipe to vent air from under concrete slab. |
 | Fan used to draw air from under concrete slab to create a negative pressure under the slab. |
 | Pipe with manometer sealed in concrete floor ready to start venting. |
 | Finished typical outside installation. |
 | Manometer. Shows that fan is working and how hard the fan is working. This does not measure the level of radon the system is removing. |
 | Radon in water Bubble-up Sr. unit. Removes 98% to 99% of radon in water. |
 | Radon in water Windsor unit. Removes up to 85% radon in water. |
 | Radon in water GAC (granular activated carbon) system. State of Connecticut recommends this when radon levels are between 5,000 and 10,000 pCi/L (pico curies) . This system should be exchanged yearly at a cost of approximately $275.00 to $325.00. |