really cloudy water

[tarak]

our pump is a Hayward power flo lx pump Hp1.5
the sand filter I believe holds 150lbs at least that's what it looks like it says on the side it is a V series

about 2 weeks ago when we had major algae and pool was severely green we had tried aqua chem algae elimanator and it didn't do anything, I also bought shock plus from walmart a total of 10 bags and nothing, so we drained the pool 1/2 way took sample to pool store and they gave us, I don't even remember what they gave us we filled added didn't work, still had green algae filled water.....I went to a local mom and pop store, they had liquid shock, I put 4 gallons in the pool and left it running o filter all night and by morning we had blue cloudy water, that night I added another 4 gallons and water was a little bluer but still cloudy, I took sample in to pool store they said ph was low everything else good, add 8lbs of baking soda and 5 ozs of clarifier ad that should do the trick......24 hrs later.......nothing.......so after another 24hrs I added another 5ozs like they said and again nothing, that was a week ago today. Yesterday I got in the pool and spent 3 hrs vacuuming every inch of it, only got out a small amount of leaf debris and there were very few slippery spots, I'm not even getting anymore free floating dead algae, BUT I did find a quarter on the bottom of the pool if that matters, last night I added a bag of shock that is meant to treat 24000 gal n my pool is only 14000 and still no change.
I only have the test kit that came with our pool and when we tested this morning the BR/CL was 3.4-1.5 and the ph was 7.6-7.8 range
I also pulled the ladder out and scrubbed that bad boy down with bleach
when I got in to vacuum yesterday I couldn't see waist down, excuse my babbling I'm an extreme newbie, we just got the pool last year this is our first opening after a winter
thank you