Are you near a winemaking store? Most sell pH calibration solution. You can order from enartisvinquiry.com and I'm sure Amazon and eBay have it.
Something is always fermenting
...."It's Bahl Hornin'"Primary: Brite Tank/Lagering:
Cider, German Pils, Belgian Tripel, Bedeviled (Bel. Golden Strong), AHA Summer Ale, Sonoma County Organic Cider, Maibock Bock, Ommegang Abbey Ale CloneBottled:
Contentment (Trappist), Derangement (Belgian Dark Strong), Kranky (Kolsch v1.1), Wise One (Wit)On Deck: My Site: www.restlesscellars.com