Hot Water Extraction.
What is water extraction?
In this process the machine injects hot water with a PH neutralizing agent into the carpet under pressure and then immediately wet vacuums water and soil out. This is a restorative and multi-step process. Which include 4 steps.
The first step is dry soil removal: 80% of the soil in the carpets is dry. All the carpet cleaning jobs has to start with vacuuming thoroughly all the carpeted area to remove the dry soil.
The second step is soil suspension: 20% of the soil in the carpet is attached to the fiber like oil, food, beverage, organic residues, etc. To remove all these residues we need to apply an special chemical called pre-spray. This is an alkaline chemical. The function of this chemical is release and suspend the attached soil from the carpet pile. The PH of the pre-spray goes from 9.5 to 13. Based on the soil condition of the carpet, we can select the PH of the solution.
The third step is soil extraction: After an appropriate dwell time of the pre-spray solution it is time to extract that solution with a carpet extractor machine. This machine is going to inject hot water with a PH neutralizing agent into the carpet under pressure and then immediately wet vacuums water and soil out. It is very important to use an acid rinse chemical to leave the carpet free of residues of the pre-spray solution and prevent the rapid resoiling of the carpet.
The fourth step is getting the carpet dry: After cleaning the carpets through water extraction, the area is going to be wet for about 6 hours. It is crucial to reduce that time as much as we can to prevent accidents like slip and fall and also to prevent the rapid resoiling of the carpet due to the traffic of the people over the wet carpets. If the carpet is wet, this water will wash the soles of the shoes of the people who will be walking on the carpet. This will make the carpet dirty quickly.
