clean out solar tubing

I have a homemade solar heater for my pool that runs water thru a coil of 100' of sprinkler drip tubing. I have a 16' round above ground pool which I take down each winter. Well I forgot to blow the water from the solar tubing so I am pretty sure the inside of the tubing is pretty gross. I am wondering if I can get some tips for how to clean it out.
 
I would say a diluted bleach solution run thru the coils (perhaps allowed to remain inside a while) should help out the situation.

Can you hook up a garden hose to it with one of those fertilizer bottles attached and filled with bleach?
 
No real reason for it to get gross. Sun can't get in so nothing can grow and filtered chlorinated water went in. I would flush it our with a hose first and see if anything besides water comes out.
 
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