Oversized Postcards. Oversized postcards give you the most impact for your mailing campaigns. Our 6 x 11â and 8.5 x 11 postcard sizes represent a practical solution for companies that need all the space that postal regulations will allow. Restaurant owners, for instance, find these larger sizes invaluable for sending out their menus to local customers.
Pond Size And Depth. by Tom Burton. Once the where is decided, we need to determine size and depth. An ideal pond for the average hobbyist is between 23 and 25 feet long by 12 to 13 feet wide and 3 to 4 feet deep.
In this issue, we will look at how to test your pond, what the results mean, and how to add it. pH. To understand why a pond needs lime, you must first be familiar with pH. In technical terms, pH is defined as the negative log of the molar concentration of hydronium ions. In practical terms, pH is a measure of acidity.