Reviews & Ratings for Geigerrig Hydration Pack Engine Reservoir — 16 reviews — Page 1

Best hydration bladder on the market in my opinion. I love that it sprays. This is my second one, I lost the first one in the moving process. I hunt and hike a lot and there's nothing else I will carry!

Works great and easy to ckean

Watch the videos online and learn how to use this tool effectively. I cut my hose and connected a sawyer mini with no problems. I do have issues with the bulb pump falling off from to time. Find a way to secure that and you're good to go.

This thing is great! It's only been on one 3-day trip so far, but it feels incredibly durable, even when it's pressurized. The pressurization system sometimes needs a little help sometimes to maintain pressure, but it works well enough that this was the only water container I used all weekend. The open-top system makes it easy to fill and clean, and the in-line filter I picked up clips right in and means you can fill and drink on the trail without ever slowing down. 3 liters was probably a little large for hiking on the east coast, but I'd rather carry more water and stop less. It's a fantastic bladder that's worth every penny.

This hydration pack is the best system I have found so far. It is a high quality product with the best and most reliable bite valve. Campsaver had the best price by far and shipping was quick.

I purchased the 2L model to provide 11 miles of water carry for mountain trail running on the AT during hot summer months.

I haven't use this product in the field yet (3 months hence), but I have run it through some preliminary, out of the box tests.

I did fill it up and insert it into my 2015 MountainSmith Day TLS lumbar pack (also purchased from Campsaver.com). I placed it vertically into the stretchy fabric compartment against the back, and the pack easily zips closed. The 2 hoses can exit either end of the pack due to the double zippers on the pack, so no pack exit hole modification was required. I also tried placing the bladder horizontally. The horizontal fit is snug, which is desirable to minimize movement of the bladder while running. Storage of other gear seems more convenient this way, also.

The stated dimensions of the bag shrink when filled with water, allowing it to fit horizontally and vertically within the 12"Vx10"H pack dimensions .

I don't expect any problems with water delivery due to orientation since the water is pressurized, not gravity fed, but having the water exit port of the bag in the lowest vertical position is standard procedure otherwise.

I see

Setting up the Hydration Engine Reservoir is a breeze. It can carry 3L of water and so far it is proving to be durable. It can also be flipped inside out so it is easy to wash. I would definitely recommend it.

Short term observations
Very easy to fill and clean.
Fits easily into both camelback HAWG pack as well as North Face Conness 70.
Should have purchased air bulb garage to help contain. However a strip of Velcro solved that issue easily. Will repost after long term usage through four seasons.

Works as advertised

After reviewing several hydration pack articles, I bought two Geigerrig engines (one for me, one for my partner) and we field-tested them on the one-day Tongariro alpine crossing in New Zealand. They performed admirably, with a good capacity, a well-designed bite valve, and easy (pressurized) flow. The ability to turn the bladder inside out for dishwasher cleaning is great. Very pleased with these purchases, and will be using them more in the future.