For me I would use about the same amount of water at 1.25 qts per pound. But the water would be at 164F.
What temp was your water? What do you use for a mashtun?
A common problem is failing to preheat the mashtun (cooler). You will also need to stir vigorously, otherwise you might get the wrong temps from certain parts of the mashtun.
In Process - Russian Imperial Stout, Nelson Sauvin Rye IPA, Mild No.3
In Kegs - Barley Wine, Apfelwein, Wild BlackBerry Wheat, Coffee Oatmeal Porter
Gone - so many :(