Three Questions To Ask When Choosing Between Distillation And Reverse Osmosis

Construction & Contractors Blog

Reverse osmosis and distillation are two water purification methods that are very efficient at removing contaminants from the water supply. They have very similar results but very different methodologies. Reverse osmosis uses water pressure to force water through a semi-permeable membrane that only allows water molecules through; distillation actually evaporates the water, leaving the contaminants behind. If you're seeking a water treatment for bacteria, heavy metals, or other contaminants, either of these methods is likely to work. Here are three questions to ask to help you choose between them.

1. Can you afford to lose a lot of water during the purification process?

Reverse osmosis uses a system that requires a lot of runoff. This excess water doesn't get filtered, but it does help force the rest of the water through the membrane to get filtered. If you can catch and re-use this water for non-drinking purposes, it may not be a total waste; however, there's an awful lot of it. Each gallon of reverse-osmosis-filtered water will tend to produce four or more gallons of wastewater (depending on how efficient your unit is). If you live in a desert or a water-restricted area or if you're an environmentalist who doesn't want to waste that much water, you may prefer distillation.

2. Are you comfortable with having your water supply tied to your power supply?

While reverse osmosis uses water pressure to power its purification, distillation uses electricity. It doesn't use a lot of electricity, but this does mean that if your power goes out (say during a winter storm or a hurricane) you won't be able to filter any more water unless you have a backup power supply such as a generator. Of course, if you live in an area that has frequent power outages, it's a good idea to have a backup generator on hand anyway.

3. Do you need to have chemicals removed from your water?

In the reverse osmosis process, the membrane used for filtration is so small that nothing larger than a water molecule can get through. Unfortunately, some chemicals are smaller than water molecules. And with distillation, chemicals may evaporate with the water instead of being left behind with the contaminants. This means that whichever system you choose, you'll need to make sure it's one with a good secondary filtration system to catch any chemicals before you drink the water. While they both do remove some chemicals, they're not totally chemical-proof. Reverse osmosis systems and distillation systems can both be equipped with carbon filtration in order to weed out these chemicals, so if chemicals are a problem with your water, choose a model that includes carbon filtration.

For more information, contact PureFlow Water Company or a similar organization.


14 September 2016

Protecting Your Home During Construction

During construction, parts of your home might be completely torn apart, which is why it is crucial to do what you can to protect your place. One of the best tips I've ever heard in terms of preparing for a renovation is meeting with your contractor to discuss how the job will impact your daily life. I wanted to make a blog all about protecting your home and family during construction, because the process is usually more involved than most people realize. Read these helpful posts to make your next construction project simple, clean, and safe. It could help you to make your house feel like a home, even during the hard times.