Watering Plan for Private Track??

I've built a few. A 3" pump will make a big difference. Running 2 hoses off a 2" is gonna limit your reach big time. The more HP the better. Track near me actually uses 2 pumps set up in parallel for extra pressure and the ability to refuel and still water. Perhaps get a second 2" and try that.

Can you build a large rectangular "ring" just inside the perimeter of the lanes of the track that border the property lines?

You'll get more coverage and less line-loss from that vs the star topology and you can add more watering stations with shorter hoses.
The ring system feeds the most distant spigots from both sides at each station, so you reduce the flow velocity and dramatically reduce head-loss.

It doesn't use a whole lot more feet of piping than the star system you proposed and if you're savvy with the shape of the "ring" you can get some great coverage by adding TEEs whereever you want.

I have a pond and a track on 7 acres. I have given up on watering. I spend half my day watering and in 1-2 hours it basically dry. I use 2 of the 2” trash pumps, a 2” 3hp submersible and I also have a tote on a trailer. I fill sumps along the track also and just scoop the water with my loader bucket and dump it on my track. When it’s dry I just ride the trails and then ride the track right before dark. What I need is a water truck. Pumps,ponds and dragging hose around hasn’t been effective for me. Good luck and I hope it works.

Most people have no idea how much water it takes 

Your 1500 gallon cistern is a drop in the bucket.

Not sure you gain much pressure hooking pumps parallel.

Pumps are rated by head pressure, which is how many feet the pump will push water straight up.

If you hook 2 pumps together that are rated for 90' head they are still only going to pump 90' of head.

They would do a little more volume, but only if you have a big enough pipe to handle it.

If you want to drag your hose a little less, stop using trash pumps to run your hoses.

Send a little more and get a high pressure pump.

Depending on the nozzle you are using you could very well double how far it sprays.

Every foot you gain there is a foot less you have to drag the hose.

Find an old water truck or you'll be wasting your time.  

I used to get so worn out and even hurt my back and arm dragging the firehose around watering the track. Started using a 4wheeler and it helped but it was really tough. Piped irrigation is a must.  Sounds awesome and like some good times. Best of luck.

And this is good advice as well.

Find a fire truck. They don't work all that great for race tracks because they have to put down so much water and be precise doing it.

For something like what you have they can be ideal.

They are low mileage and well maintained.

They have unreal pumps on them, and it isn't hard to find one with a 1000-1500 gallon tank.

Rig you up a water cannon and build a road beside your track.

Beats the hell out of dragging hose.

Ps. That's one of my early water trucks in my promoting days in my profile pic.

Talk, short wheel base trucks are not the perfect setup on a hilly track.

Pumps in parallel increase flow.

Pumps in series increase head.
 

I bought this and a pump awhile back off craigslist for cheap. The guy delivered it and passed my entrance gate and i saw it come unhooked and drag down the road. I jumped in the golfcart and headed out and the guy was waving me off but no. Lol methhead had put that ball tongue on it and only had the bolt going horizontal under the tongue. How he brought it from out of town is crazy. Surprised he made it 50 feet. Guy couldn't even talk. 

I would not run all the lines beneath the track. Run all the lines outside the fence line, for sure 

Tell us more about that 5 burner grill! SS? Nice.

Hand watering is wasting your time and water. Set up irrigation sprinklers on the outside of the track pointed in with sweeping arcs. Run the irrigation for long periods at night and give it plenty of time to soak in. 
Won’t take long to establish the most efficient and effective regime.

Buy a cheap trailer, put a few 350 gallon water crates on it, and water that way. I have a .75 mile long track, 55 sec lap times. I put down 2800 gallons of water at dusk and ride the next morning, re apply during the day if doing a longer session.

This. My buddies private tracks watering system is pretty next level, but in terms of maintenance and overall time it takes to water it’s a huge PITA. He sprung for a used water truck a few months ago and it turned watering the track into a pretty fun and quick job, and the watering truck is so much more effective than the sprinkler system. Only pain in the ass was cutting and making lanes for the water truck, but that only took a few hours with some dedicated help. 

We had a 6 week drought in WNC, then the last 5 weeks we have been getting pounded by rains. Im getting better at mud riding. Looks like we will have a dry moto day tomorrow for a change. Ill be prepping tomorrow morning. 

How much do you value your time and energy?  Money?  I think a lot would have to depend on how the soil holds water.  And do not underestimate how much water it is going to take.

FWIW, I tried doing this exact thing at one time.  Smalllish home track in Western Oregon with silty loam soil type.  Well fed water into old liquid fertilizer tanks storing 3000 gallons.  Then had two 350 gallon pack tanks on an old flatbed trailer.  Used a 2" Honda trash pump to fill trailer tanks then pulled the trailer around with my tractor while someone walked behind laying water down on the track.  It would take three or four trailer loads of water to do one pass around the track and by the time that one lap was done, it was time to do another.  It was a futile attempt in which I quickly gave up.  

Another vote for a water truck.  I've spent the last 15 years with a 600 tank w/pump on a trailer and 100 ft firehose. I used to have 2" but I was beat after dragging it all over.  Now have a 1" fire hose....  much much easier but just takes a bit longer to get the water down. Moral of the story, if i could do it all over again, I would have invensted in a water truck.  (my buddy let me use his water truck a few summers back and what a game changer.)

Good luck man, and what ever option you choose... enjoy the chocolate cake !   

Get a Mahindra roxor and you can pull quite the trailer to hold water.

I plan on getting an HF 2” pump then using either my small trailer with an IBC tote behind said roxor.  Or we have an old sprayer (ag sprayer for a tractor) that would need tires. Or a big trailer that holds like 1500 gal.  Both of those would require a pickup or tractor to pull.  Can fill from our water tower.

Our smallest tractor however is a 4250 and the others barely fit on my track, meaning to get a disc at some point as all our ag implements are too large to fit out there.  Don’t ride my track much atm since it’s so hot and dry in ks.

In agricultural applications…especially in those huge round hay field watering systems…I’ve seen Rain Birds that cover huge areas. They seem pretty damn efficient and the have a helluva long reach.

 

These aren’t the biggest examples…but, they’re the kind I’m talking about.

I installed Hunter sprinklers.  Works well.

At my buddy’s track he had 3” pumps that filled 2 3000 gallon water tanks filled from an irrigation ditch. The tanks/pumps supplied irrigation lines run from the tanks to key points in the track and there were 50’ fire hoses at each watering point. The whole track had complete water coverage and with 2 pumps could be watered completely by 2 guys in under an hour with periodic touch ups during the day. The track was in a little over a mile long.

Between that and the type Team Green posted above you, you just need to place the irrigation strategically, and it’ll cover the track efficiently. It works out reasonably cheap and you don’t need pumps as big as you do for running fire hoses.