Mr. Pandharkar, I agree with Mr. Johnsons summary and would only add: As a general design baseline for conventional media filtration I use the following temperature corrections for backwash design.  Temperature (F)     Flow (gpm/ft2) http://www.evoqua.com/en/brands/IPS/Pages/vantage-pti-hf-mmf.aspx Cross flow < 5µm http://www.evoqua.com/en/brands/vortisand/Pages/default.aspx?stc=ppc300117&ads_cmpid=721419488&ads_adid=43263353892&ads_matchtype=b&ads_network=g&ads_creative=167403866369&utm_term=%2Bvortisand&ads_targetid=kwd-47730601551&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=EAIaIQobChMIkaaGysrZ1QIVyoKyCh2-_gP9EAAYASAAEgI10vD_BwE

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Mr. Pandharkar,

I agree with Mr. Johnsons summary and would only add:

As a general design baseline for conventional media filtration I use the following temperature corrections for backwash design. 

Temperature (F)     Flow (gpm/ft2)

http://www.evoqua.com/en/brands/IPS/Pages/vantage-pti-hf-mmf.aspx

Cross flow < 5µm

http://www.evoqua.com/en/brands/vortisand/Pages/default.aspx?stc=ppc300117&ads_cmpid=721419488&ads_adid=43263353892&ads_matchtype=b&ads_network=g&ads_creative=167403866369&utm_term=%2Bvortisand&ads_targetid=kwd-47730601551&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=EAIaIQobChMIkaaGysrZ1QIVyoKyCh2-_gP9EAAYASAAEgI10vD_BwE