1/2 Whisky Barrel Pond

hi i need some advice about this please, i have bought a 1/2 whisky
barrel to replace the plastic pond i had. its 24" deep by 36" diameter.
i filled it with the original water from pond and put lilies in it plus
some pond weed and then topped it up with tap water which i then added
de chlorinator. it has now developed a milky colour and bad smell also
flies on the top. it has a lot of what look like tiny tadpoles but are
not, in the water which i have in abundance. also looks like a oil slick
on the top which i think is pollen. i guess in my haste i should have
washed the barrel out, but i didnt. it isnt lined as no fish will be
added. the water lily has bloomed twice but the leaves are not looking
too good. as you can tell no doubt, i am a complete novice. i have no
splashing water on the lilies but put a pump on the bottom to give some
circulation. i also have no filter except what is in the water pump.
please help as i dont want to lose my lilies or plants. would greatly
appreciate any help in this matter. i have very little money, as a
pensioner, but if there is any simple way to cure this problem ???
please help, thanks chrissy




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misswaterlily