diff --git a/zcash_client_backend/src/data_api.rs b/zcash_client_backend/src/data_api.rs
index caa07e8ace..9068be5527 100644
--- a/zcash_client_backend/src/data_api.rs
+++ b/zcash_client_backend/src/data_api.rs
@@ -1001,7 +1001,7 @@ pub trait WalletRead {
         Ok(vec![])
     }
 
-    /// If a given transparent address has been reserved, i.e. would be included in
+    /// If a given ephemeral address might have been reserved, i.e. would be included in
     /// the map returned by `get_known_ephemeral_addresses(account_id, false)` for any
     /// of the wallet's accounts, then return `Ok(Some(account_id))`. Otherwise return
     /// `Ok(None)`.
diff --git a/zcash_client_backend/src/data_api/wallet/input_selection.rs b/zcash_client_backend/src/data_api/wallet/input_selection.rs
index 7ffc873829..7374aeee26 100644
--- a/zcash_client_backend/src/data_api/wallet/input_selection.rs
+++ b/zcash_client_backend/src/data_api/wallet/input_selection.rs
@@ -384,6 +384,9 @@ where
         let mut tr1_payments = vec![];
         #[cfg(feature = "transparent-inputs")]
         let mut tr1_payment_pools = BTreeMap::new();
+        // this balance value is just used for overflow checking; the actual value of ephemeral
+        // outputs will be computed from the constructed `tr1_transparent_outputs` value 
+        // constructed below.
         #[cfg(feature = "transparent-inputs")]
         let mut total_ephemeral = NonNegativeAmount::ZERO;
 
diff --git a/zcash_client_sqlite/src/wallet/transparent/ephemeral.rs b/zcash_client_sqlite/src/wallet/transparent/ephemeral.rs
index a700168857..461261de6e 100644
--- a/zcash_client_sqlite/src/wallet/transparent/ephemeral.rs
+++ b/zcash_client_sqlite/src/wallet/transparent/ephemeral.rs
@@ -187,7 +187,7 @@ pub(crate) fn find_index_for_ephemeral_address_str(
     Ok(conn
         .query_row(
             "SELECT address_index FROM ephemeral_addresses
-        WHERE account_id = :account_id AND address = :address",
+            WHERE account_id = :account_id AND address = :address",
             named_params![":account_id": account_id.0, ":address": &address_str],
             |row| row.get::<_, u32>(0),
         )
diff --git a/zcash_primitives/src/legacy/keys.rs b/zcash_primitives/src/legacy/keys.rs
index c7b7c610a2..25a20eed1a 100644
--- a/zcash_primitives/src/legacy/keys.rs
+++ b/zcash_primitives/src/legacy/keys.rs
@@ -21,10 +21,11 @@ use super::TransparentAddress;
 pub struct TransparentKeyScope(u32);
 
 impl TransparentKeyScope {
-    /// Returns an arbitrary custom `TransparentKeyScope`. This should be used
-    /// with care: funds associated with keys derived under a custom scope may
-    /// not be recoverable if the wallet seed is restored in another wallet.
-    /// It is usually preferable to use standardized key scopes.
+    /// Returns an arbitrary custom `TransparentKeyScope`.
+    ///
+    /// This should be used with care: funds associated with keys derived under a custom
+    /// scope may not be recoverable if the wallet seed is restored in another wallet. It
+    /// is usually preferable to use standardized key scopes.
     pub const fn custom(i: u32) -> Option<Self> {
         if i < (1 << 31) {
             Some(TransparentKeyScope(i))