VEVOR Water Distiller, 4L 1.05 Gallon Pure Water Purifier Filter for Home Countertop, 750W Distilled Water Maker, Stainless Steel Interior Distiller Water Making Machine to Make Clean Water, Gray

I've been using this Vevor (aka Mophorn) pure water distiller for 10 months, running it at least once a day and often two or more times a day, 7 days a week. It's performed well and continues to provide a good quality distilled water (see below) with regular maintenance.Suggestions (lessons learned)1) Do not run it dry. i.e. Do not let it run until the automatic shutoff turns it off. It takes roughly 4 hours to distill about 1 gal. of water. So, I have the unit on one of those inexpensive wall outlet timers set to shut it off after about 3 1/2 hours. This way the 'minerals & impurities' do not get "burnt on" the bottom so it's easier to clean and doesn't 'pit' the stainless steel. Personally, I disconnect the power cord from the wall timer to the unit as soon as I notice it has shut off. [Suggest you experiment with the 'time' if you have "Hard" water. You may want to shorten the time to 3 hours, producing less distilled water but 'saving' the units bottom from being as built up.]2) After the distiller has cooled for at least 30 to 45 minutes, disconnect the plug from the upper to the lower unit, take off the condensing unit (top) with care as hot steam may still come out and hot water clinging to the unit will 'spill off' as soon as you tilt it. Set the top it aside and pour the leftover water from the distilling unit (bottom). Carefully because it will still be hot, wipe out both top and bottom with a soft cloth or paper towel. Take care when wiping off the upper unit being careful around the vent cover that the water vapor goes through to the condensing coil. Be sure to gently wipe off the soft seal on the top unit to keep it clean. Set both parts (top & bottom) on a towel or over the edge of a sink to dry being careful not to ding or damage the edges. Part of the reason for allowing the units (top & bottom) to dry at this point is to let them cool. If you are in a hurry to produce another 'batch' of distilled water, I suggest you let the unit cool for at least 15 to 20 minutes before proceeding.3) Mix a couple ounces of vinegar with a little water and using a soft cloth or paper towel, wipe off the inside of the upper and lower unit with the vinegar & water mixture. Pour the remaining mixture out and rinse with tap water then wipe the inside with a damp soft cloth or paper towel. I usually lightly rinse it again just to be safe but that's "Belt & Suspenders" thinking. Set the units aside to dry or fill to run another batch.While I agree that this is not a 'laboratory Grade' distilling device but consider it a good quality 'Home Use' distiller which should produce reduced levels of 'harmful' contaminants from tap water when properly used.Even though the unit is as loud as an evaporative humidifier when operating, I find this Vevor Tabletop Water Distiller well this worth the money, but it does require care to maintain it so it will last. My most important piece of advice is do not let it run 'dry' and clean it with a vinegar or ascorbic acid and water mix at a minimum of every other use.AddendumI noticed a few negative reviews questioning the quality of the 'distilled water' produced by this unit, so I thought I'd add some thoughts and observations for those interested. There are many considerations that impact "what kind/level of distilled water" you need for your proposed use.First, there are different levels ('kinds') of "Distilled" water. No simple, single stage, countertop distilling unit will produce 'Technical or Laboratory Grade' distilled water, especially at this price. Filtering or distilling water for 'Human Consumption' is quite different than filtering water to produce water for a marine reef aquarium or use in a laboratory. Water processed in typical water plants for 'Human Consumption', often has certain chemicals added intentionally and/or inadvertently which are considered beneficial to humans. Chemicals such as Calcium, Potassium, Molybdenum and Magnesium are required by humans to stay healthy. In many areas Fluoride is added to "promote stronger teeth" and reduce tooth decay.While small levels of lead and copper are considered safe for human consumption, even a small amount of copper in marine reef water can poison and kill a marine invertebrate ('coral') and small levels of either are usually considered unacceptable for most laboratory grade distilled water applications. [FWIW, most Technical Grade and especially ASTM Deionized water is harmful to drink or even get in your eyes.]So, if you're primary purpose is to produce drinking water or water for home humidifier, when properly used and maintained, this unit will provide a highly reduced level of a large majority of 'unhealthy contaminants' found in most USA produced 'tap water'.Personally, I produce two levels of filtered/distilled water for our home use. First, for our humidifiers, I filter our tap water through two different gravity fed filters that contain 'mixed bed ion' with activated charcoal filtration. (see attached photo) This lowers the percentage of mineral impurities and unnecessary chemicals not needed for use in a humidifier. Reduces the 'white dust', etc. you may see from using unfiltered water in a humidifier. Second, I also use the double filtered water in this distiller to produce water to add moisture to the output of an Oxygen Concentrate and CPAP. This distillation greatly reduces many secondary 'pollutants' not desired for inhalation such as chloride, sodium, nitrates and sulfates as well as helping to ensure that any microbial, fungi or viral microorganisms possibly present are killed. While some of these can be safely ingested, they can be hazardous when inhaled especially by someone with 'lung issues'. [For the 'purists', I also gravity drip, reverse flow feed the output of this distillation unit through a water quality ultraviolet (UV) sterilizer into a Nalgene container using medical grade tubing providing approximately 15 minutes UV Light contact time.]In reviews comparing results of before and after impurity levels from a Certified Laboratory, I would suggest:1) A Certified Laboratory Test should also be performed on the store purchased 'distilled water' you're buying for a "fair" comparison to the performance of any distillation unit you are using. You may be surprised at the test results for distilled water you purchased at your local grocery store for a few dollars. You may also want to do a comparison with 'Nursery Water'. PS, be sure to include a 'Fluoride Level' test in Certified Laboratory results.2) In looking at the water quality, before and after test results posted in some reviews, I theorize the 'after distilling' with a unit like this was possibly A) Not run as suggested 4 or 5 time (with the water produced discarded) prior to sending the produced distillate to a Certified Laboratory for testing. And very likely B) The unit tested had the "tea bag' style activated charcoal filter installed. Probably, the 'Activated Charcoal' filter had not been pre-rinsed and 'washed' properly prior to use.For many years I was a Certified Water Plant Operator and have maintained marine reefs aquariums for decades which require stringent water parameters for the health of the invertebrates. So, I ran the following tests this weekend after probably 400+ uses of this unit. I don't have the test kit/equipment to run several other tests often run for drinking water such as the various polyethylenes, vinyl chlorides, cryptosporidium, Haloacetic acids, Barium, Beryllium, Cadmium, etc.These results are the findings for my water supply. (From my tap)Water quality tests [unfiltered tap water -> After Filtering and distilling - your results may vary]> pH: 7.8 -> 7.0> Total Dissolved Solids (TDS): 286ppm -> 3 ppm> Electrical Conductivity (mmho/cm): 6.8 -> 1.3> Salinity (ppt): 0.205 -> 0.004> Hardness (dGH/dKH): 6/5 -> 0/0> Carbon Dioxide (CO2, ppm): 2.7 -> 0> Coliforms, Total (cfu/100ml): 0.01 -> 0.00> E. Coli (cfu/100ml): 0.00 -> 0.00> Giardia lamblia (mg/L): 0.00 -> 0.00> Ammonia/Ammonium (ppm): 0.19 -> 0.03 (margin +/- 0.025 ppm)> Chlorine,Total (mg/L): 2.86 -> 0.71> Chlorine,Free (mg/L): 0.95 -> 0.14> Nitrate (ppm): 0.29 -> ND (Not Detectable)> Nitrite (ppm): 0.01 -> ND> Arsenic (As,ppb): 1.98 -> 0.01> Barium (Ba,ppm): 0.16 -> 0.029> Cobalt (Co,ppb): 0.91 -> <0.53 [MRL is 1]> Chlorate (CIO₃⁻ anion): 205 -> 30 [MRL is 20]> Chromium,Total (Cr,ppb): 0.41 -> <0.2 [Minium Reporting Level (MRL) is 0.2]> Chromium-6 (Cr-6,ppb): 0.19 -> 0.05> Iron (Fe,mg/l): 1.2 -> 0.06> Copper (Cu,mg/L): 0.043 -> 0.017> Cyanide,Free (C≡N,mg/L): 0.001 -> 0.000> Fluoride (F,ppm): 0.08 -> ND (Not Detectable)> Lead (Pb,mg/L): 0.0022 -> 0.0001> Mercury,inorganic (Hg,mg/L): 0.0002 -> 0.0000> Molybdenum (Mo,mg/L): 0.07 -> 0.01> Phosphates (PO4,ppm): 0.23 -> 0> Silicates (SiO2,ppm): 3.0 -> 0> Strontium (Sr,µg/L=ppb): 426.5 -> 278> Vanadium (V,µg/L): 0.31 -> 0.07

I'm pleased with my Mophorn water distiller; it does everything it claims to do, and delivers distilled water at a rate of about 1 liter (quart) per hour. The instructions mention that in order to get to the initial distillation point more quickly you can start with hot water; but it's important to note that doing so will start the distillation process immediately. If you start with cold water, the unit will not start until you push the power switch at the bottom. In addition, once the distillation process has started, the only way to stop it mid cycle is to pull the plug. The power switch will not turn the unit off. There is a power indicator light, but it is somewhat dim and difficult to see in a bright kitchen.The construction of the unit is seamless stainless steel (I think type 304, but I'm not certain) from start to finish. There are no plastic parts in the distillation path.The condensing fan is somewhat loud; I would compare it to the sound of a desk fan. You can certainly talk over it, but it's definitely there. The interior of the condensing chamber is professionally constructed, and is quite impressive. The unit was properly designed, and that design was well executed. Nicely done. Every few months - the actual time will vary, depending on how often you use the unit and how many dissolved solids are in your water - you'll need to clean the boiling chamber. This is easily accomplished using a weak acid, such as vinegar, and wiping the walls with a sponge or paper towel. You'll be amazed at how much stuff your water distiller removes from the water.When the distillation process has completed, the unit will turn itself off. However, the steam chamber will remain hot for some time, so don't remove the upper distillation chamber immediately; give it several minutes. When you do remove the distillation chamber, you can expect a small quantity of water - perhaps 1 ounce - to flow off the bottom of the chamber. If you're expecting it, it's easy to position the chamber so that it falls back into the steam chamber.The plastic jug supplied is not as useful as you might imagine; it's difficult to pour the distilled water out of it. A screw on cap is provided, but the cap has no gasket and is not waterproof. If you tilt the plastic jug sideways with the cap on, you can expect some leakage. While the plastic jug does get you up and running, you might want to consider looking for a more suitable jug on a long term basis. When I'm using the distiller, I position a small funnel to ensure that all the distilled water flows into the bottle. I don't think that's really necessary, but it prevents my worrying about wet surprises.The quality of the water supplied is excellent; it's so good, that it's almost addictive. If you normally use tap water for drinking and food preparation, you've probably become used to the taste of tap water. This water is amazingly good, and you'll realize, perhaps for the first time, what you've been missing. I just can't say enough about it. I've stopped drinking soda pop; I just take my empty soda pop bottles and fill them with water, then store them in the fridge. Drinking one is a treat, and I know that it's gotta be a lot better for me than soda pop.Distilled water is also an excellent way to wash a car. When you've finished washing and you have all the dust off, rinse your car down with a gallon or two of distilled water and a clean sponge or microfiber towel. No more water spots! There are no minerals in distilled water, so when the water evaporates from the surface of the car it leaves nothing behind. Distilled water purchased commercially is too expensive to use in this way, but when you have your own distiller, you can make as much as you need, for little more than the cost of the water. When making a gallon of water, the unit will consume about 3,000 watts of power; at ten cents per kilowatt, you can make a gallon of water for about thirty cents. That's less than half the cost of purchased water, and you have the added advantage that you have the unit at home. You don't have to go to the store and lug water jugs around.Distilled water is also useful in keeping steam irons clean, and working properly; and it is also useful for topping up large 12 volt batteries. While most car batteries are maintenance free, golf cart batteries, solar power batteries, and deep cycle batteries are not. If you use concentrated cleaners in your home, the instructions will tell you to dilute it to a specified dilution; if you dilute it using distilled water, you'll almost certainly see improved results. If you hand wash delicate clothing, you'll get a better result using distilled water; there won't be any minerals and salts left behind in the clothing to abrade the fabric, or irritate your skin. If you have a room humidifier, filling it with distilled water will prevent you from having to clean or replace the evaporative pads. And I have a Homeright pressurized home steam cleaner - this one: https://www.amazon.com/HomeRight-SteamMachine-C900053-M-Multi-Purpose-Bathrooms/dp/B01KVBG6AK/ref=sr_1_1?s=home-garden&ie=UTF8&qid=1525291906&sr=8-1&keywords=homeright+pressure+steam+cleaner which specifies distilled water as the fluid to use. (By the way, a pressurized steam cleaner is definitely the best way to clean hard surfaces such as tile, countertops, faucets - anything along that line. I actually bought this distiller to keep my Homeright cleaner fed and happy.)So, in summary... this unit is excellent value for the price, and performs very well. While stainless steel, industrial units selling for many thousands of dollars are superior, this unit is a simple, inexpensive and practical unit for home use. It will happily deliver excellent distilled water at a rate of about one quart per hour; and once you have large quantities of distilled water in your life, you'll wonder how you ever got along without it. I'm very happy with my unit, and I have no difficulty in recommending the Mophorn home distillation unit to everyone. It's a good unit that offers excellent quality water at an affordable price. Highly recommended.

I bought this because I was tired of paying for distilled water for my humidifier and the Zero water filters were costing a fortune. It works great, takes my 450+TDS tap water down to 1. Takes about 3 hours to do a gallon. I work from home so I just let it run in the kitchen during the work day. It is about as loud as a bathroom fan. Super easy to clean. After I've made a couple sometimes three gallons of water I take off the top and wipe it down, put about a 1/2 to 3/4 cup water in the unit, sprinkle in a table spoon or so of citric acid and turn it on (no lid) for about 30 seconds or so, swish the water around a bit and you will see the build up on the bottom of the container go away. Pour it out, give a good rinse, wipe down the sides and dry it off, put the top piece back on and ready to go. I'm averaging about 5 gallons a week so it won't take long to pay for itself at that rate. Fits on the counter top.