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Frequently Asked Questions
Frequently Asked Questions related to Water Filtration
Q. What is reverse osmosis (RO)?
A. A hyper filtration process that reverses the natural tendencies of water and salt movement and forces clean water to flow through a semi-permeable membrane (0.0001 micron) by overcoming the osmotic pressure. RO systems remove substantial amounts of salts and contaminants from water, where water pressure is what forces water molecules through the membrane. Many drinking water systems or DI systems, especially in areas where water has high salt content or water quality issues, use RO membrane as one stage in the filtration process.
Q. How does an RO membrane differ from sediment and carbon filters?
A. Sediment water filters use a porous medium (e.g., polypropylene) to mechanically separate suspended particles (e.g., dirt) from water. Carbon filters/cartridges will adsorb some chemicals (e.g., organic compounds, chlorine). Carbon block filters will also serve as sediment filters. An RO membrane is a semipermeable membrane that removes an extremely high percentage of dissolved salts from tap water. Normally, an RO system will have sediment and carbon filters before the RO membrane and a carbon filter as a post filter.
Q. How is RO water compared to bottled water?
A. Bottling plants use the same technology, reverse osmosis (RO) filtration, to purify water. Some bottling plants add selected minerals to water for improving the taste. Similarly, some RO systems have alkaline filters added for the same reason: improve taste and raise pH. In bottling plant minerals are injected in water using metering pumps and plastic bottles are used as containers for water. Some of them add ozone to water for long term shelf storage. Alkaline filters normally start effective and their effectiveness reduce with time, thus routine replacement is needed similar to other filters.
Q. Is it easy to install the RO System or another filtration system?
A. If you can follow instructions, you will be able to follow the Installation Manual that comes with the product. Technical support is available. A handyman or plumber will be able to install the system in less than an hour.
Q. If I move, can I remove the filtration system to take with me?
A. Our systems are easy to uninstall. There is no need to completely uninstall; just take off the water inlet tubing, close out the water inlet shut off valve, and take off the whole system in 5 minutes. It is wise to leave the faucet in place for others to use. You can order a new faucet, feed valve and saddle drain valve for use in your new residence.
Q. Your HDG-CB6-14 filter is considerably less expensive than the Multipure Aquaversa CB6 filter. Is the HDG-CBC-14 filter really equivalent to Multipure CB6?
A. Carbon block cartridge is a filter that is made from activated carbon compressed in a block with small pores. For people on municipal water looking for simple one stage filtration system, using a system with carbon filter cartridge (with 0.5 micron rating) may be the answer. Multipure CB6 is a 0.5 micron filter made mainly from activated carbon in a block. Most Fridge filters are also 0.5 micron carbon blocks. HDG-CB6-14 is 0.5 micron carbon block in the same size and shape as the Multipure CB6. That is why we call it CB6 compatible filter. Many CB6 sellers/customers want us to make a comparison between the CB6 and HDG-CB6-14 and we are not going to make that comparison. If we make any claim we have to prove it through an independent entity. That will cost money?! To compare any two products that do the same, you need to specify criterion. For example how many gallons of chlorinated water will go through before it is time to change the filter. You have to test both filters under the same conditions to make a comparison. An independent water quality entity will test any filter and give you the results but you who paid for the tests need to put the results for both products in a table to make a comparison.