Under-sink water filter and reverse osmosis installation in Grand Rapids
Quick answer: An under-sink carbon filter in Grand Rapids costs about $150 to $300 to install, plus the system. A reverse osmosis system costs about $250 to $500 to install and needs a drain connection, a storage tank or tankless unit, and a hole for a dedicated faucet.
What’s the difference between carbon and reverse osmosis?
A carbon filter is a cartridge that improves taste and odor and removes chlorine. It needs no drain and fits in a small space.
Reverse osmosis (RO) pushes water through a fine membrane. It removes far more dissolved solids than carbon. It needs a drain connection, more cabinet space and, on many models, a small storage tank.
| Carbon | Reverse osmosis | |
|---|---|---|
| Improves taste and odor | Yes | Yes |
| Reduces dissolved solids | Little | A lot |
| Needs a drain | No | Yes |
| Cabinet space | Small | Medium to large |
| Installed cost (labor) | $150 – $300 | $250 – $500 |
Why plan it with the remodel?
An RO system needs a hole in the counter or sink for its own faucet. Drilling stone later is harder and riskier. Tell your fabricator about the extra hole before templating.
Also plan the cabinet. RO tanks, a disposal and a trash pull-out don’t all fit in a standard 36-inch sink base. Pick which ones matter most.
Should older homes test for lead?
Yes, if your home was built before 1986 and you don’t know what your service line is made of. Michigan’s Lead and Copper Rule requires water systems to find and replace lead service lines. Your utility can tell you what material serves your home. A filter certified for lead reduction is a sensible step while you wait. The EPA explains lead service lines in plain terms.
Sources and further reading
Common questions
Do I need a water filter on Grand Rapids city water?
Grand Rapids city water meets federal safety standards, so for most homes a filter is about taste and peace of mind. A filter is more useful on a private well, which the owner must test and treat on their own. It also makes sense in an older home that may still have a lead service line or old fixtures. Your utility can tell you your service line material.
How often do filters need changing?
Carbon cartridges usually last about 6 months. Reverse osmosis systems have several stages. Pre-filters are changed every 6 to 12 months and the membrane every 2 to 4 years. Hard water, heavy use or a well can shorten those times. Follow your model’s schedule, and write the change date on the housing so you don’t lose track.
Will a filter lower my water pressure?
It lowers pressure only at the filter faucet. Your main faucet, dishwasher and fridge aren’t affected unless you connect them to the filter. Reverse osmosis faucets run slower by design, because the water passes through a fine membrane. A storage tank evens this out, so a glass still fills in a few seconds.