Step 1: Analyze the code pattern.
Each letter in "WATER" is shifted forward by 2 letters in the alphabet:
\[
W \to Y, A \to C, T \to V, E \to G, R \to T
\]
Step 2: Apply the same pattern to "HOUSE".
Shift each letter by 2 forward:
\[
H \to J, O \to Q, U \to V, S \to S, E \to F
\]
Step 3: Write the coded word.
The coded word is "JQVSF".