Please see the update below. We live in the Dominican Republic where even city water isn't that good, so we have a whole house (+2 sqm) and animals that have been using a filter and UV system for over 15 years. We have been without city water and in severe drought conditions for over 18 months. We also have rainwater harvesting systems, but without rain there is no water. The cost of water trucks has more than tripled, and the water they deliver comes from one of the most polluted rivers in the county. You DO NOT NEED to know what we found cleaning. Eventually we dug a well and reached a water level of 30 feet. We are in the sea so expected some salt but ended up in good water above sea level. The aquifer consists mainly of fossilized coral and is therefore very rich in calcium. Everyone here has 3rd world septic systems which also added to the discomfort. But the water was suitable for lawns (also called complementary pastures), gardens and horses. Rumors spread about my well and in 2 months at least 20 wells were drilled within a 1/4 mile radius. The well water became useless for anything as many went too deep and let the sea water through as the fresher water was sucked in. We have also noticed a very serious algae/bacterial problem in our pools and 2 cisterns. After much research and questions from Helen @ iSpring, we purchased this device. (THANK YOU HELEN!) We focused on what we had and what we needed to do. The electricity here is also very dirty so we are 90% solar with good inverter and battery systems. Importing anything is expensive to ship and duties are outrageous. We had to get it right the first time. You shouldn't send it back. Since most of our water systems are in a dedicated area, it was fairly easy to get them up and running in a matter of hours without any special skills. Planning ahead can be very important.1. A few changes to dedicate the fountain to this reverse osmosis system.2. Well water goes through a descaler. (We already had one so we just moved it.) 3. to an old sand filter that we cleaned.4. to the UV sanitizer that we already had. (I didn't want bacteria and algae getting into the rest of the system. While RO can handle some/big/?, it won't be able to kill and separate everything.)5. 30 gallon pressure tank fitted with pressure gauge, well pump on/off pressure switch, tank drain and connection to RO.6. Followed the RO system or figured it out and hung it on the wall. (instructions are very bad so it took a while)7. Installed new e-mail body armor. Shelf for filters.8. The reverse osmosis fresh water line leads directly into our gravity tank. No need for another pump.9. Sewage flows into the gardens through PVC drip lines. No need for another pump.10. Before the facility arrived, we dumped about 7,500 gallons from that tanker into a second tanker to get in and sanitize. Lots of algae (and other things you don't want to know about) 11. Turn on the well pump, fix a few leaks, open and close the reverse osmosis valve.12. As other contaminants may enter our tank or I need to top up water from trucks, this independent system also has its own filters and UV. Observations: 1. Our 1 HP well pump. will only give us about 65psi while the best performance is around 75psi. (or higher?) I have the well pump control set to 42/62.2. With these pump settings I was getting 540 gallons per day.3. Although I haven't tested the water yet, it's clean, odorless and tastes great.4. The motor is very quiet.5. I had NO problems the week it worked; 24 hours every day.6. Using electricity is not a problem for our systems.7. The waste water does a great job on my plants and even they are much cleaner.8. Filters available and good prices. I have read the Q&A and the comments and thank those who have posted and I agree with most of them. Back to Helen. THANK YOU for your support @iSpring. After only a few days we are very satisfied with this device. We'll give it a few more weeks, but I've already picked a location for a second unit to be installed alongside this one (the name that appears as the author is my wife, lol). Our first unit has been running almost at full capacity 24 hours a day, 7 days a week since we installed it. We just installed two more and got them up and running within hours of receiving them and everything was planned in such a way that it was very easy for us to be the ones who went through the instructions which are just very poorly done. Most of the information the distributor claims is correct BUT let's see. I will NOT point out the differences between dealer claims and instructions. My observations are my own.1. This appliance is 110 volts, not 220 volts as stated in the instructions. The manual says it MUST be grounded, but the unit comes with a 110V two-prong plug. The unit offers a 36V AC-DC converter that drives a booster pump, which the system supports but does not much.2. The manual uses all kinds of different measurements and they are not consistent. The water pressure in the instructions is given in MPa. The sensor is in PSI. Different numbers for "working pressure" and "suitable water pressure".? I did the math and found that the best PSI is between 72.5 and 101.5 to get closer to 500 gpd. I'm working below, but the performance will be lower. In most homes, the water pressure for city water is about 45 psi. Well the systems can be adjusted like I did but be very careful not to blow the lines if you lift too much. Our new 1.5 hp well pump. Designed directly for other filters/UVs and our reverse osmosis system and the first unit didn't leak at 120psi for weeks. We had other leaks to fix. With three running units, we get an average of 90psi for each unit, with the gauge slightly higher ahead of the units. (Some fluctuations due to our dirty energy affecting the well pump.) C. The manual states that this device is rated at less than 1000ppm and does not account for or address biological issues. We have pre filters and UV since our well water is closer to 2000PPM and we know well water has all kinds of bacteria and stuff in it. Our treated water has about 57ppm which ends up in our water tank. This water is AGAIN treated with filters and another UV filter as our cistern is most likely infiltrated from outside by leaching. D. DUCK. INCOMING? Replacement of consumables / filters. (It's going to hurt.) You'll see packs of filters that last a year. Correct IF you follow the manual and use their water prices. D1. The average family of 3 uses 10 liters per day. (Only drinking water?) That's 3.3 liters per person per day. That's less than a gallon per day per person. D2. According to other information; The low average is 80 gallons per person per day, which is 303 liters per person per day. This includes drinking water, cooking, bathing and going to the toilet. D3. When using a 24/7 reverse osmosis system, filters without a pre-filter must be replaced every 3-5 days. Now the manual starts using "tons" but I don't know if it's in US or metric tons. Let's take US.D3a: 1st and 2nd filters are rated for 7.5 tons of water. = 2018 gallons. @ 500 gpd these filters need to be changed every 4 days. (No pre-filters. We have an old flushing filter that we wash twice a week and a larger filter that we change every 2 months, so we replace the 1st reverse osmosis filter once a month.) Monitoring the water intake through a well and The comparison of sensors on reverse osmosis systems is very helpful in determining when filters need to be replaced. D3b: Filters 3 and 4, every 3-5 days. D3c: Reverse osmosis membrane unknown, but said to be good for 2-3 years. ? Which brings us to .E. "Flush" reverse osmosis membranes? It says it should be reset but never says how. @ $150.00 for the diaphragm, I would like to know how to extend its life. All three. Edit 25.9. We asked this question and got a quick response from iSpring; Thank you. This device has an automatic flush, so I don't have to do anything. Beautiful.F. This unit can be installed under the sink as an on-demand unit. It has a high-pressure shut-off sensor, so the device turns off when the tap is closed. Open the tap and the low pressure sensor turns it on. This works well with refrigerated ice machines/water blocks and some other special features. It depends on your layout, your needs and what you need to work with. Our water production is full day in an 8000 gallon tanker. Buying reverse osmosis filters and membranes can be confusing in the way they are described. Be sure to buy the right items. CONCLUSION: I looked at many systems. Importing the system costs us about 38% more than the purchase price. Either we have a working water solution or? Please don't hesitate to ask questions or leave comments.
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