The only reason for the existance of a multipool is to increase the price of a coin. It works in the following way: we mine a coin which is the most profitable to mine at any given moment, these mined coins are then exchanged into BTC, and for these BTC, UTC are bought. Thanks to this operation, we get rid off sell offers at a lowest price. In subsequent days multipool will buy UTC at higher prices then in previous days because sell offers at lower prices have already been fulfilled by multipool.   Of course there might be fluctuations of price because of the people who might try to manipulate the price but in the long run the price is bound to rise.

The most important thing for an efficient running of a multipool is the right choice of a coin to mine. Also, for this plan to work we need as many miners in a multipool as possible. The more miners, the more BTC, the more UTC bought, the faster the price rise.

Cheers