Finally found a reliable place to get water. I have been looking for a place where I can refill my big water gallons without having to refill them one at a time and this place is perfect. It has about 20 filtered water faucets and about 8 alkaline faucets so if some are out of service, there is still plenty that will still work. I have 6 five gallon jugs and was in n out in 5 minutes.

Usually staffed by 1 person (on occasion 2) always pleasant, upbeat, and very helpful. Acknowledges and greats you as you enter. Water filling stations are always neat.

Very helpful and the 1 lady staff has awesome customer service skills.

Awesome place to get water. I feel like its clean in there..workers are nice too.

Great place to get filtered and alkaline water.

Love getting my alkaline water here. Great customer service and cool weekly savings such as double stamp Wednesdays. Quick service and they even help carry water gallons to the car. Thank you for your business!!!!

Go there all the time for water

I have always used the machine outside by the side of waipahu building. Ive never gone into the store. Today when I saw both machines were out of order I tried pulling into the spot open by the door as im disabled. This was about 546pm. Because the guy in spot next to the stall I was pulling into was loading his van and blocking my ability to park, I wasnt able to park and exit my car until 558pm.the lady inside came to the door telling me shed ALREADY CLOSED UP and wouldnt let me fill anything, nothing! The thing is if youre closing EARLY before the sign on your door, PUT A SIGN ON THE FRONT DOOR! I will never use this store again even though it is only .60 per gallon vs $1.99 at the other store I buy alkaline water. If someone can explain to me why the store closed EARLY, I will edit my review to a more positive review. But seriously when I finally got back into my car, the clock on my smart phone literally turned 6pm before my eyes. Theres no way this site closed on time, they closed early!

This place has the best tasting water. The people that work there are awesome. The girls do an outstanding job to make you feel welcome.

I always go to Mountain Slope for their Alkaline water...It so much cheaper to buy here than buying bottled water at the store..Even if the 5 gallon is heavy to transport by bus after its filled up,I still keep going back to Mountain Slope...

I cancelled my Menehune water servuce because it was double the price if not triple when I calculted price/5 gallon bottle. Youre not only paying for the name but the delivery service as well. But if you want to save a few bucks and do it yourself knowing you disinfected your own bottle before filling it then this would be the way yo go. I never knew if my water was ever sitting in a hot warehouse or truck growing bacreria before ut was delivered to my house so decided to do it myself. However, in my experience Mountain Slope has great customer service! They always offer to help with filling my heavy 5 gallon bottles or loading it into my truck. They show you what to do if youre a new customer and even have a diluted bleach bottle at every station to disinfect your jugs before filling them. Theres a discount program with a punch card and deals if you wear their T-shirt on certain days. The Waipahu location is open til 6pm and open on Sundays as well. Cant beat the price for 2 - 5 gallon bottles of alkaline water for $6.50 ($3.25 ea). Only problem is having to lift and carry them yourself when you get home but its worth it in my opinion!

Its a good place to get bottled water. The woman working there is always very nice and polite.

Best place to get water in Waipahu. And they have alkaline water.

Buy the T-shirt and wear it every Tuesday, get FREE 5 gallons water. Also, refill every Wednesday and get a double stamps on the card. Not only these, they have friendly staff, also you can rinse your containers too. Plus, free water refill of small drinking jug. Since I found this place (secured at night), I don’t want to refill my containers at the outside refill stations around the area, you don’t know who touch the nozzle at night. It’s kind of nasty to think about it.

ASHLEY WAS THE FIRST PERSON THAT TOLD ME THAT THERE WAS ***ONLY ONE*** ULTRAPURE DISPENSER.In the past, I have been filling my 2 bottles at the first two stations, closest to the register, on the row, opposite from the alkaline. All this time, I thought the entire middle row was Ultrapure. It was only today, that ASHLEY informed that there is only ONE ULTRAPURE FILLING STATION.Im not complaining about the fact that there is only one ULTRAPURE filling station - its just that all this time, Ive been getting only ONE ULTRAPURE AND ONE PURIFIED WHEN I PAID FOR TWO ULTRAPURE.ASHLEY: 🤗 MAHALO PLENTY 💝🌈🎉 YOU NEED A PROMOTION!!!

Great deal, real alkaline water

You guys dont value your customer! SO DISAPPOINTMENTS!!!

I been drinking water here for a few years. I got my parents sister and friends on it..

Friendly staff. Convenient, clean, & inexpensive alkaline.

Get your alkaline water here for only 50 cents a gallon!! Lots of specials too!!

PURIFIED($.55)& ALKALINE WATER($.60)

Wet

Cheap! Very friendly.