Mastertangler, I don't have any pictures so I'll try to explain.

Tie a bowline in the end of the rope (a trucker's hitch will do, if you prefer), using whatever size rope you choose.  Wrap it around the tree once or twice at about top-of-head level and tie it off somehow.  Friction will hold it in place.  There should be enough rope to hang down a couple of feet.

Tie another bowline in the free end, high enough above the ground so the water bag hangs without touching (gotta keep stuff clean, y'know).

Attach one end of a double snap shackle to the rope you wrapped around the tree.  There will be enough slack in the rope to do this.  The other end of the shackle will hold the dirty water bag.  (I use snap shackles with an open hook on the other end to make hanging the bag easier.)

Attach one end of another double shackle to the bowline you tied in the free end of the rope.  Hang the clean water bag from it, using the bag's nylon web handles.

When the clean bag is full, switch bags; the clean water will now be at a convenient height.

I haven't described the full system, since it includes a 3-gallon reservoir hung from a third hook, using its own hanging rope.  Once you get the hang of the two-hook method, adding a third will be easy and obvious.

SP2
You know how much I have enjoyed meeting you and SP1........I would only have your best interests at heart.

That being said I will make the case for the gravity filter.

Perhaps I have done to much water pumping........On the trail backpacking and now canoeing. It has always been my least favorite camp chore. I require quite a bit of water ("your peeing again?" ) and after a hard day to pump a few liters (enough for breakfast as well) was always a laborious task. By the time I found a place to set my stool up and then pump 2 liters with a pump that probably needed a bit of silicone on the plunger (and a new filter) I can almost assuredly expect some perspiring to occur. Add in a bag that would fall over once in a while and the expectation to have to do it again the next day all under a cloud of skeets.........well, I just didn't like it much.

Nowadays I wade out into the water with my platypus clean stream dirty water bag and scoop a bagful. The sun is shining...... a loon whistles in the background........ dragonflies are keeping the skeets at bay..........a fish jumps......a moose lifts its head from out of the water (and if I didn't know better I could of swore it winked at me)......Ahhh, life is good.

I climb up the bank and set my dirty water bag on a chest high branch.......connect the hose fitting, open the little clamp that acts as a valve and let her rip. Water is now flowing into the clean water bag. By the time the tent is up I have a nice big bag of water. Its magic I tell you 

I know Preachers comment got under your skin (it's a club....welcome aboard  ). But he was merely trying to point out how superior the gravity feed systems are compared to pumping. This comment may surprise you, in fact you might want to sit down  , but I am inclined to agree with him.

But hey........if you don't mind pumping........and you have a good system and equipment that functions well then be satisfied with it and be done. The key to happiness is to be content with what you have. (Not so sure I am the best qualified guy to give that advice about being content seeing that I am always looking at the next new and shiny thing but the statement is still true IMO)

 

Over a span of 30+ years I started before there were filters and we did the best we could by boiling when we thought necessary, middle of the lake etc. Then I bought a Pur water purifier and filtered all my water for a few years until I couldn't keep up with my own demand and went back to drinking some water directly from the lake always away from shore. So now I do three things. I drink from the middle of large deep lakes when possible. I filter (pump)when in camp. And when ultra-light traveling without the filter and not near a water source that I think is safe, I use iodine tablets.
Last year on a trip to WCP I decided not to carry the filter and took only iodine tablets. I used the tablets a few times. When I was on a large deep lake I would get water from the middle of the lake. The video link shows the water that I/we were drinking from the middle of some of the lakes we travelled on. This happens to be Carrol Lake.

(You need to Login or Register to view media files and links)

Yeah, we drank live moving wiggly bugs and did not really realize it until late in the trip. No harmful effects that we know of however. Once we knew about it we all had one of those "man up" and just drink it moments. Cheers all you middle of the lake drinkers!

KF
You can always use a little protein on a trip.  My brothers call that mechanical pepper.  When you stick your finger in the water they all move away from it and leave a 1 inch clear area around your finger. I have never seen those more than a few feet away from shore.
MagicPaddler

Here are my thoughts Kerry.........

I am not keen on having to break out the Platypus on travel days. When I'm in camp it's great! But around noon its time to refill on H2O and I want it fast and I want it now without having to stop.

I took Stu's advice from BWJ and picked up one of the Katadyn squeeze bottles with the filter built in. Some might think its good.......I think it sucks to be blunt. It is heavy, bulky and hard to get a good guzzle........in fact its hard to get a decent sip IMHO.

So now I'm going with the Steri Pen as my go to gadget to get a drink on travel days and it will back up the platypus. Seems kind of fantastic....(To good to be true perhaps)...my regular water bottle and just zap it for a little while. Another item on the Batman utility belt.......lets see.....camera, water bottle, bear spray, SPOT, seal pup knife and now a steri pen........Oh and the little bottle of Bens Deet that fits in a pocket of the sheathe that holds the Seal Pup. I like stuff within reach and hate diggin for it. I might have to ditch the knife (but I LIKE it)..........